78625701 has 64 divisors (see below), whose sum is σ = 147916800. Its totient is φ = 40089600.

The previous prime is 78625669. The next prime is 78625709. The reversal of 78625701 is 10752687.

78625701 is a `hidden beast` number, since 7 + 86 + 2 + 570 + 1 = 666.

It is not a de Polignac number, because 78625701 - 2⁵ = 78625669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78625709) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 122341 + ... + 122981.

It is an arithmetic number, because the mean of its divisors is an integer number (2311200).

Almost surely, 2^78625701 is an apocalyptic number.

It is an amenable number.

78625701 is a deficient number, since it is larger than the sum of its proper divisors (69291099).

78625701 is a wasteful number, since it uses less digits than its factorization.

78625701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727 (or 721 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 78625701 is about 8867.1134536556. The cubic root of 78625701 is about 428.4053083321.

The spelling of 78625701 in words is "seventy-eight million, six hundred twenty-five thousand, seven hundred one".