71668376 has 32 divisors (see below), whose sum is σ = 145110000. Its totient is φ = 32987520.

The previous prime is 71668343. The next prime is 71668393. The reversal of 71668376 is 67386617.

It is a happy number.

It is a super-2 number, since 2×71668376² = 10272712236954752, which contains 22 as substring.

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, 51206 + ... + 52586.

Almost surely, 2^71668376 is an apocalyptic number.

It is an amenable number.

71668376 is an abundant number, since it is smaller than the sum of its proper divisors (73441624).

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

71668376 is a wasteful number, since it uses less digits than its factorization.

71668376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1899 (or 1895 counting only the distinct ones).

The product of its digits is 254016, while the sum is 44.

The square root of 71668376 is about 8465.7176895996. The cubic root of 71668376 is about 415.3770724880.

The spelling of 71668376 in words is "seventy-one million, six hundred sixty-eight thousand, three hundred seventy-six".