78793969 has 8 divisors (see below), whose sum is σ = 84348000. Its totient is φ = 73380672.

The previous prime is 78793951. The next prime is 78793993. The reversal of 78793969 is 96939787.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78793969 - 2¹⁵ = 78761201 is a prime.

It is a super-2 number, since 2×78793969² = 12416979101545922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78793919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34024 + ... + 36265.

It is an arithmetic number, because the mean of its divisors is an integer number (10543500).

Almost surely, 2^78793969 is an apocalyptic number.

It is an amenable number.

78793969 is a deficient number, since it is larger than the sum of its proper divisors (5554031).

78793969 is a wasteful number, since it uses less digits than its factorization.

78793969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70367.

The product of its digits is 5143824, while the sum is 58.

The square root of 78793969 is about 8876.5967014391. The cubic root of 78793969 is about 428.7107027083.

The spelling of 78793969 in words is "seventy-eight million, seven hundred ninety-three thousand, nine hundred sixty-nine".