47990808 has 48 divisors (see below), whose sum is σ = 136819800. Its totient is φ = 15154560.

The previous prime is 47990791. The next prime is 47990809. The reversal of 47990808 is 80809974.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47990809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16173 + ... + 18908.

Almost surely, 2^47990808 is an apocalyptic number.

It is an amenable number.

47990808 is an abundant number, since it is smaller than the sum of its proper divisors (88828992).

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

47990808 is a wasteful number, since it uses less digits than its factorization.

47990808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35112 (or 35105 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 47990808 is about 6927.5398230541. The cubic root of 47990808 is about 363.4009185125.

The spelling of 47990808 in words is "forty-seven million, nine hundred ninety thousand, eight hundred eight".