78970005 has 16 divisors (see below), whose sum is σ = 140391360. Its totient is φ = 42117264.

The previous prime is 78969953. The next prime is 78970007. The reversal of 78970005 is 50007987.

It is not a de Polignac number, because 78970005 - 2⁸ = 78969749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78970007) 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, 292347 + ... + 292616.

It is an arithmetic number, because the mean of its divisors is an integer number (8774460).

Almost surely, 2^78970005 is an apocalyptic number.

It is an amenable number.

78970005 is a deficient number, since it is larger than the sum of its proper divisors (61421355).

78970005 is a wasteful number, since it uses less digits than its factorization.

78970005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584977 (or 584971 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The square root of 78970005 is about 8886.5069065409. The cubic root of 78970005 is about 429.0297304448.

The spelling of 78970005 in words is "seventy-eight million, nine hundred seventy thousand, five".