47990506 has 8 divisors (see below), whose sum is σ = 72552960. Its totient is φ = 23806188.

The previous prime is 47990497. The next prime is 47990513. The reversal of 47990506 is 60509974.

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

It is a super-2 number, since 2×47990506² = 4606177332272072, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94216 + ... + 94723.

It is an arithmetic number, because the mean of its divisors is an integer number (9069120).

Almost surely, 2^47990506 is an apocalyptic number.

47990506 is a deficient number, since it is larger than the sum of its proper divisors (24562454).

47990506 is a wasteful number, since it uses less digits than its factorization.

47990506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189068.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 47990506 is about 6927.5180259599. The cubic root of 47990506 is about 363.4001562325.

The spelling of 47990506 in words is "forty-seven million, nine hundred ninety thousand, five hundred six".