78607975 has 12 divisors (see below), whose sum is σ = 98179480. Its totient is φ = 62431200.

The previous prime is 78607961. The next prime is 78607981. The reversal of 78607975 is 57970687.

It is not a de Polignac number, because 78607975 - 2¹³ = 78599783 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7836 + ... + 14785.

Almost surely, 2^78607975 is an apocalyptic number.

78607975 is a deficient number, since it is larger than the sum of its proper divisors (19571505).

78607975 is a wasteful number, since it uses less digits than its factorization.

78607975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22770 (or 22765 counting only the distinct ones).

The product of its (nonzero) digits is 740880, while the sum is 49.

The square root of 78607975 is about 8866.1138612134. The cubic root of 78607975 is about 428.3731115519.

The spelling of 78607975 in words is "seventy-eight million, six hundred seven thousand, nine hundred seventy-five".