71667404 has 12 divisors (see below), whose sum is σ = 125491128. Its totient is φ = 35812800.

The previous prime is 71667389. The next prime is 71667413. The reversal of 71667404 is 40476617.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4499 + ... + 12789.

It is an arithmetic number, because the mean of its divisors is an integer number (10457594).

Almost surely, 2^71667404 is an apocalyptic number.

It is an amenable number.

71667404 is a deficient number, since it is larger than the sum of its proper divisors (53823724).

71667404 is a wasteful number, since it uses less digits than its factorization.

71667404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10456 (or 10454 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 71667404 is about 8465.6602813957. The cubic root of 71667404 is about 415.3751946335.

The spelling of 71667404 in words is "seventy-one million, six hundred sixty-seven thousand, four hundred four".