47110621 has 4 divisors (see below), whose sum is σ = 49881852. Its totient is φ = 44339392.

The previous prime is 47110597. The next prime is 47110639. The reversal of 47110621 is 12601174.

47110621 = 936² + 937² + ... + 986².

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30415225 + 16695396 = 5515^2 + 4086^2 .

It is a cyclic number.

It is not a de Polignac number, because 47110621 - 2⁵ = 47110589 is a prime.

It is a super-2 number, since 2×47110621² = 4438821222011282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47110592 and 47110601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47114621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1385590 + ... + 1385623.

It is an arithmetic number, because the mean of its divisors is an integer number (12470463).

Almost surely, 2^47110621 is an apocalyptic number.

It is an amenable number.

47110621 is a deficient number, since it is larger than the sum of its proper divisors (2771231).

47110621 is a wasteful number, since it uses less digits than its factorization.

47110621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2771230.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 47110621 is about 6863.7177243823. The cubic root of 47110621 is about 361.1655152185.

Adding to 47110621 its reverse (12601174), we get a palindrome (59711795).

The spelling of 47110621 in words is "forty-seven million, one hundred ten thousand, six hundred twenty-one".