79364578 has 8 divisors (see below), whose sum is σ = 120677868. Its totient is φ = 39138624.

The previous prime is 79364573. The next prime is 79364587. The reversal of 79364578 is 87546397.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 79334649 + 29929 = 8907^2 + 173^2 .

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

It is a super-2 number, since 2×79364578² = 12597472482236168, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (79364573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271651 + ... + 271942.

Almost surely, 2^79364578 is an apocalyptic number.

79364578 is a deficient number, since it is larger than the sum of its proper divisors (41313290).

79364578 is a wasteful number, since it uses less digits than its factorization.

79364578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543668.

The product of its digits is 1270080, while the sum is 49.

The square root of 79364578 is about 8908.6799246577. The cubic root of 79364578 is about 429.7430915349.

The spelling of 79364578 in words is "seventy-nine million, three hundred sixty-four thousand, five hundred seventy-eight".