47720490 has 16 divisors (see below), whose sum is σ = 114529248. Its totient is φ = 12725456.

The previous prime is 47720467. The next prime is 47720537. The reversal of 47720490 is 9402774.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 795312 + ... + 795371.

It is an arithmetic number, because the mean of its divisors is an integer number (7158078).

Almost surely, 2^47720490 is an apocalyptic number.

47720490 is an abundant number, since it is smaller than the sum of its proper divisors (66808758).

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

47720490 is a wasteful number, since it uses less digits than its factorization.

47720490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1590693.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 47720490 is about 6908.0018818758. The cubic root of 47720490 is about 362.7173235105.

The spelling of 47720490 in words is "forty-seven million, seven hundred twenty thousand, four hundred ninety".