47904621 has 8 divisors (see below), whose sum is σ = 64092000. Its totient is φ = 31826832.

The previous prime is 47904611. The next prime is 47904631. The reversal of 47904621 is 12640974.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (47904611) and next prime (47904631).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47904621 - 2⁶ = 47904557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47904611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26371 + ... + 28128.

It is an arithmetic number, because the mean of its divisors is an integer number (8011500).

Almost surely, 2^47904621 is an apocalyptic number.

It is an amenable number.

47904621 is a deficient number, since it is larger than the sum of its proper divisors (16187379).

47904621 is a wasteful number, since it uses less digits than its factorization.

47904621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54795.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 47904621 is about 6921.3164210286. The cubic root of 47904621 is about 363.1832434721.

The spelling of 47904621 in words is "forty-seven million, nine hundred four thousand, six hundred twenty-one".