71680895 has 32 divisors (see below), whose sum is σ = 104569920. Its totient is φ = 46448640.

The previous prime is 71680883. The next prime is 71680919. The reversal of 71680895 is 59808617.

71680895 = 306² + 307² + ... + 624².

It is a happy number.

It is not a de Polignac number, because 71680895 - 2⁴ = 71680879 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19007 + ... + 22463.

It is an arithmetic number, because the mean of its divisors is an integer number (3267810).

Almost surely, 2^71680895 is an apocalyptic number.

71680895 is a deficient number, since it is larger than the sum of its proper divisors (32889025).

71680895 is a wasteful number, since it uses less digits than its factorization.

71680895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3515.

The product of its (nonzero) digits is 120960, while the sum is 44.

The square root of 71680895 is about 8466.4570512110. The cubic root of 71680895 is about 415.4012570405.

The spelling of 71680895 in words is "seventy-one million, six hundred eighty thousand, eight hundred ninety-five".