78792705 has 48 divisors (see below), whose sum is σ = 145926144. Its totient is φ = 39191040.

The previous prime is 78792697. The next prime is 78792709. The reversal of 78792705 is 50729787.

It is not a de Polignac number, because 78792705 - 2³ = 78792697 is a prime.

It is a super-2 number, since 2×78792705² = 12416580722434050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78792709) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 96750 + ... + 97560.

It is an arithmetic number, because the mean of its divisors is an integer number (3040128).

Almost surely, 2^78792705 is an apocalyptic number.

It is an amenable number.

78792705 is a deficient number, since it is larger than the sum of its proper divisors (67133439).

78792705 is a wasteful number, since it uses less digits than its factorization.

78792705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966 (or 963 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 45.

The square root of 78792705 is about 8876.5255026953. The cubic root of 78792705 is about 428.7084102603.

It can be divided in two parts, 78792 and 705, that added together give a palindrome (79497).

The spelling of 78792705 in words is "seventy-eight million, seven hundred ninety-two thousand, seven hundred five".