47621892 has 12 divisors (see below), whose sum is σ = 111117776. Its totient is φ = 15873960.

The previous prime is 47621851. The next prime is 47621897. The reversal of 47621892 is 29812674.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 47621892.

It is not an unprimeable number, because it can be changed into a prime (47621897) 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, 1984234 + ... + 1984257.

Almost surely, 2^47621892 is an apocalyptic number.

It is an amenable number.

47621892 is an abundant number, since it is smaller than the sum of its proper divisors (63495884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47621892 is a wasteful number, since it uses less digits than its factorization.

47621892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3968498 (or 3968496 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 47621892 is about 6900.8616853260. The cubic root of 47621892 is about 362.4673410133.

The spelling of 47621892 in words is "forty-seven million, six hundred twenty-one thousand, eight hundred ninety-two".