47992980 has 48 divisors (see below), whose sum is σ = 153578880. Its totient is φ = 10969728.

The previous prime is 47992979. The next prime is 47993017. The reversal of 47992980 is 8929974.

It is a happy number.

It is a super-2 number, since 2×47992980² = 4606652258560800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56715 + ... + 57554.

It is an arithmetic number, because the mean of its divisors is an integer number (3199560).

Almost surely, 2^47992980 is an apocalyptic number.

It is an amenable number.

47992980 is an abundant number, since it is smaller than the sum of its proper divisors (105585900).

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

47992980 is a wasteful number, since it uses less digits than its factorization.

47992980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114288 (or 114286 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 48.

The square root of 47992980 is about 6927.6965868895. The cubic root of 47992980 is about 363.4064007769.

The spelling of 47992980 in words is "forty-seven million, nine hundred ninety-two thousand, nine hundred eighty".