78716955 has 16 divisors (see below), whose sum is σ = 127247904. Its totient is φ = 41548800.

The previous prime is 78716941. The next prime is 78716959. The reversal of 78716955 is 55961787.

It is not a de Polignac number, because 78716955 - 2⁵ = 78716923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78716959) 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, 25596 + ... + 28505.

It is an arithmetic number, because the mean of its divisors is an integer number (7952994).

Almost surely, 2^78716955 is an apocalyptic number.

78716955 is a deficient number, since it is larger than the sum of its proper divisors (48530949).

78716955 is a wasteful number, since it uses less digits than its factorization.

78716955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54206.

The product of its digits is 529200, while the sum is 48.

The square root of 78716955 is about 8872.2576044657. The cubic root of 78716955 is about 428.5709818249.

The spelling of 78716955 in words is "seventy-eight million, seven hundred sixteen thousand, nine hundred fifty-five".