47650621 has 4 divisors (see below), whose sum is σ = 48664512. Its totient is φ = 46636732.

The previous prime is 47650607. The next prime is 47650649. The reversal of 47650621 is 12605674.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12605674 = 2 ⋅6302837.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47650621 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47650121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 506875 + ... + 506968.

It is an arithmetic number, because the mean of its divisors is an integer number (12166128).

Almost surely, 2^47650621 is an apocalyptic number.

It is an amenable number.

47650621 is a deficient number, since it is larger than the sum of its proper divisors (1013891).

47650621 is a wasteful number, since it uses less digits than its factorization.

47650621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013890.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 47650621 is about 6902.9429231307. The cubic root of 47650621 is about 362.5402152768.

The spelling of 47650621 in words is "forty-seven million, six hundred fifty thousand, six hundred twenty-one".