78245713 has 32 divisors (see below), whose sum is σ = 104799744. Its totient is φ = 56650752.

The previous prime is 78245669. The next prime is 78245723. The reversal of 78245713 is 31754287.

It is a cyclic number.

It is not a de Polignac number, because 78245713 - 2⁹ = 78245201 is a prime.

It is a super-2 number, since 2×78245713² = 12244783205756738, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (78245723) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56556 + ... + 57922.

It is an arithmetic number, because the mean of its divisors is an integer number (3274992).

Almost surely, 2^78245713 is an apocalyptic number.

It is an amenable number.

78245713 is a deficient number, since it is larger than the sum of its proper divisors (26554031).

78245713 is a wasteful number, since it uses less digits than its factorization.

78245713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441.

The product of its digits is 47040, while the sum is 37.

The square root of 78245713 is about 8845.6606875914. The cubic root of 78245713 is about 427.7140507807.

The spelling of 78245713 in words is "seventy-eight million, two hundred forty-five thousand, seven hundred thirteen".