47902690 has 64 divisors (see below), whose sum is σ = 98029440. Its totient is φ = 16843200.

The previous prime is 47902681. The next prime is 47902691. The reversal of 47902690 is 9620974.

It is a super-2 number, since 2×47902690² = 4589335418472200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47902691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 785260 + ... + 785320.

It is an arithmetic number, because the mean of its divisors is an integer number (1531710).

Almost surely, 2^47902690 is an apocalyptic number.

47902690 is an abundant number, since it is smaller than the sum of its proper divisors (50126750).

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

47902690 is a wasteful number, since it uses less digits than its factorization.

47902690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160 (or 138 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 47902690 is about 6921.1769230385. The cubic root of 47902690 is about 363.1783635235.

The spelling of 47902690 in words is "forty-seven million, nine hundred two thousand, six hundred ninety".