78881675 has 6 divisors (see below), whose sum is σ = 97813308. Its totient is φ = 63105320.

The previous prime is 78881659. The next prime is 78881689. The reversal of 78881675 is 57618887.

It is not a de Polignac number, because 78881675 - 2⁴ = 78881659 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1577609 + ... + 1577658.

It is an arithmetic number, because the mean of its divisors is an integer number (16302218).

Almost surely, 2^78881675 is an apocalyptic number.

78881675 is a deficient number, since it is larger than the sum of its proper divisors (18931633).

78881675 is a wasteful number, since it uses less digits than its factorization.

78881675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3155277 (or 3155272 counting only the distinct ones).

The product of its digits is 752640, while the sum is 50.

The square root of 78881675 is about 8881.5356217267. The cubic root of 78881675 is about 428.8697104720.

The spelling of 78881675 in words is "seventy-eight million, eight hundred eighty-one thousand, six hundred seventy-five".