47907972 has 144 divisors (see below), whose sum is σ = 150014592. Its totient is φ = 12579840.

The previous prime is 47907961. The next prime is 47907983. The reversal of 47907972 is 27970974.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (47907961) and next prime (47907983).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 226947 + ... + 227157.

It is an arithmetic number, because the mean of its divisors is an integer number (1041768).

Almost surely, 2^47907972 is an apocalyptic number.

47907972 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47907972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75007296).

47907972 is an abundant number, since it is smaller than the sum of its proper divisors (102106620).

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

47907972 is a wasteful number, since it uses less digits than its factorization.

47907972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298 (or 293 counting only the distinct ones).

The product of its (nonzero) digits is 222264, while the sum is 45.

The square root of 47907972 is about 6921.5584950212. The cubic root of 47907972 is about 363.1917116786.

The spelling of 47907972 in words is "forty-seven million, nine hundred seven thousand, nine hundred seventy-two".