71607312 has 60 divisors (see below), whose sum is σ = 229032960. Its totient is φ = 20458944.

The previous prime is 71607269. The next prime is 71607313. The reversal of 71607312 is 21370617.

It is not an unprimeable number, because it can be changed into a prime (71607313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34512 + ... + 36527.

It is an arithmetic number, because the mean of its divisors is an integer number (3817216).

Almost surely, 2^71607312 is an apocalyptic number.

71607312 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

71607312 is an abundant number, since it is smaller than the sum of its proper divisors (157425648).

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

71607312 is a wasteful number, since it uses less digits than its factorization.

71607312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71060 (or 71051 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 71607312 is about 8462.1103750778. The cubic root of 71607312 is about 415.2590669639.

Adding to 71607312 its reverse (21370617), we get a palindrome (92977929).

The spelling of 71607312 in words is "seventy-one million, six hundred seven thousand, three hundred twelve".