47062821 has 16 divisors (see below), whose sum is σ = 68203520. Its totient is φ = 28693440.

The previous prime is 47062811. The next prime is 47062837. The reversal of 47062821 is 12826074.

It is not a de Polignac number, because 47062821 - 2⁵ = 47062789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47062811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1285 + ... + 9786.

It is an arithmetic number, because the mean of its divisors is an integer number (4262720).

Almost surely, 2^47062821 is an apocalyptic number.

It is an amenable number.

47062821 is a deficient number, since it is larger than the sum of its proper divisors (21140699).

47062821 is a wasteful number, since it uses less digits than its factorization.

47062821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11196.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 47062821 is about 6860.2347627468. The cubic root of 47062821 is about 361.0433237089.

Adding to 47062821 its reverse (12826074), we get a palindrome (59888895).

The spelling of 47062821 in words is "forty-seven million, sixty-two thousand, eight hundred twenty-one".