47490816 has 36 divisors (see below), whose sum is σ = 126396872. Its totient is φ = 15830016.

The previous prime is 47490799. The next prime is 47490827. The reversal of 47490816 is 61809474.

It is a happy number.

It is a congruent number.

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, 30151 + ... + 31686.

Almost surely, 2^47490816 is an apocalyptic number.

It is an amenable number.

47490816 is an abundant number, since it is smaller than the sum of its proper divisors (78906056).

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

47490816 is an equidigital number, since it uses as much as digits as its factorization.

47490816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61856 (or 61842 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 47490816 is about 6891.3580664482. The cubic root of 47490816 is about 362.1344799137.

The spelling of 47490816 in words is "forty-seven million, four hundred ninety thousand, eight hundred sixteen".