79774765 has 16 divisors (see below), whose sum is σ = 110907648. Its totient is φ = 53951616.

The previous prime is 79774729. The next prime is 79774777. The reversal of 79774765 is 56747797.

It is a cyclic number.

It is not a de Polignac number, because 79774765 - 2¹³ = 79766573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13057 + ... + 18166.

It is an arithmetic number, because the mean of its divisors is an integer number (6931728).

Almost surely, 2^79774765 is an apocalyptic number.

It is an amenable number.

79774765 is a deficient number, since it is larger than the sum of its proper divisors (31132883).

79774765 is a wasteful number, since it uses less digits than its factorization.

79774765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31308.

The product of its digits is 2593080, while the sum is 52.

The square root of 79774765 is about 8931.6720159218. The cubic root of 79774765 is about 430.4821794964.

The spelling of 79774765 in words is "seventy-nine million, seven hundred seventy-four thousand, seven hundred sixty-five".