71631092 has 24 divisors (see below), whose sum is σ = 135511656. Its totient is φ = 32934528.

The previous prime is 71631067. The next prime is 71631103. The reversal of 71631092 is 29013617.

71631092 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 633616 + 70997476 = 796^2 + 8426^2 .

It is a super-2 number, since 2×71631092² = 10262026682224928, which contains 22 as substring.

71631092 is strictly pandigital in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11918 + ... + 16890.

It is an arithmetic number, because the mean of its divisors is an integer number (5646319).

Almost surely, 2^71631092 is an apocalyptic number.

It is an amenable number.

71631092 is a deficient number, since it is larger than the sum of its proper divisors (63880564).

71631092 is a wasteful number, since it uses less digits than its factorization.

71631092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5267 (or 5265 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 71631092 is about 8463.5153452924. The cubic root of 71631092 is about 415.3050295313.

The spelling of 71631092 in words is "seventy-one million, six hundred thirty-one thousand, ninety-two".