79285769 has 4 divisors (see below), whose sum is σ = 79313280. Its totient is φ = 79258260.

The previous prime is 79285753. The next prime is 79285799. The reversal of 79285769 is 96758297.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 79285769 - 2⁴ = 79285753 is a prime.

It is a super-2 number, since 2×79285769² = 12572466331842722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79285769.

It is not an unprimeable number, because it can be changed into a prime (79285729) 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 3 ways as a sum of consecutive naturals, for example, 8849 + ... + 15390.

It is an arithmetic number, because the mean of its divisors is an integer number (19828320).

Almost surely, 2^79285769 is an apocalyptic number.

It is an amenable number.

79285769 is a deficient number, since it is larger than the sum of its proper divisors (27511).

79285769 is a wasteful number, since it uses less digits than its factorization.

79285769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27510.

The product of its digits is 1905120, while the sum is 53.

The square root of 79285769 is about 8904.2556679377. The cubic root of 79285769 is about 429.6007995094.

The spelling of 79285769 in words is "seventy-nine million, two hundred eighty-five thousand, seven hundred sixty-nine".