71607988 has 12 divisors (see below), whose sum is σ = 125405280. Its totient is φ = 35777912.

The previous prime is 71607983. The next prime is 71608007. The reversal of 71607988 is 88970617.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71607983) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 495 + ... + 11977.

It is an arithmetic number, because the mean of its divisors is an integer number (10450440).

Almost surely, 2^71607988 is an apocalyptic number.

It is an amenable number.

71607988 is a deficient number, since it is larger than the sum of its proper divisors (53797292).

71607988 is a wasteful number, since it uses less digits than its factorization.

71607988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13046 (or 13044 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 46.

The square root of 71607988 is about 8462.1503177384. The cubic root of 71607988 is about 415.2603736938.

The spelling of 71607988 in words is "seventy-one million, six hundred seven thousand, nine hundred eighty-eight".