78770295 has 48 divisors (see below), whose sum is σ = 144799200. Its totient is φ = 39502080.

The previous prime is 78770269. The next prime is 78770317. The reversal of 78770295 is 59207787.

It is not a de Polignac number, because 78770295 - 2¹² = 78766199 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

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

It is a self number, because there is not a number n which added to its sum of digits gives 78770295.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 154501 + ... + 155009.

It is an arithmetic number, because the mean of its divisors is an integer number (3016650).

Almost surely, 2^78770295 is an apocalyptic number.

78770295 is a deficient number, since it is larger than the sum of its proper divisors (66028905).

78770295 is a wasteful number, since it uses less digits than its factorization.

78770295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720 (or 717 counting only the distinct ones).

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

The square root of 78770295 is about 8875.2630946919. The cubic root of 78770295 is about 428.6677623922.

The spelling of 78770295 in words is "seventy-eight million, seven hundred seventy thousand, two hundred ninety-five".