47931075 has 48 divisors (see below), whose sum is σ = 93252960. Its totient is φ = 24053760.

The previous prime is 47931071. The next prime is 47931077. The reversal of 47931075 is 57013974.

It is a happy number.

It is not a de Polignac number, because 47931075 - 2² = 47931071 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47931071) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9387 + ... + 13563.

It is an arithmetic number, because the mean of its divisors is an integer number (1942770).

Almost surely, 2^47931075 is an apocalyptic number.

47931075 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

47931075 is a deficient number, since it is larger than the sum of its proper divisors (45321885).

47931075 is a wasteful number, since it uses less digits than its factorization.

47931075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4213 (or 4202 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 47931075 is about 6923.2272099072. The cubic root of 47931075 is about 363.2500837987.

The spelling of 47931075 in words is "forty-seven million, nine hundred thirty-one thousand, seventy-five".