78707955 has 16 divisors (see below), whose sum is σ = 131408640. Its totient is φ = 40152288.

The previous prime is 78707953. The next prime is 78707969. The reversal of 78707955 is 55970787.

It is not a de Polignac number, because 78707955 - 2¹ = 78707953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78707953) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113725 + ... + 114414.

It is an arithmetic number, because the mean of its divisors is an integer number (8213040).

Almost surely, 2^78707955 is an apocalyptic number.

78707955 is a deficient number, since it is larger than the sum of its proper divisors (52700685).

78707955 is a wasteful number, since it uses less digits than its factorization.

78707955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228170.

The product of its (nonzero) digits is 617400, while the sum is 48.

The square root of 78707955 is about 8871.7503909882. The cubic root of 78707955 is about 428.5546478350.

The spelling of 78707955 in words is "seventy-eight million, seven hundred seven thousand, nine hundred fifty-five".