79790511 has 8 divisors (see below), whose sum is σ = 106783920. Its totient is φ = 52995392.

The previous prime is 79790509. The next prime is 79790531. The reversal of 79790511 is 11509797.

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 79790511 - 2¹ = 79790509 is a prime.

It is a super-2 number, since 2×79790511² = 12733051291282242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 79790511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79790531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48630 + ... + 50243.

It is an arithmetic number, because the mean of its divisors is an integer number (13347990).

Almost surely, 2^79790511 is an apocalyptic number.

79790511 is a deficient number, since it is larger than the sum of its proper divisors (26993409).

79790511 is a wasteful number, since it uses less digits than its factorization.

79790511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99145.

The product of its (nonzero) digits is 19845, while the sum is 39.

The square root of 79790511 is about 8932.5534423254. The cubic root of 79790511 is about 430.5105005930.

The spelling of 79790511 in words is "seventy-nine million, seven hundred ninety thousand, five hundred eleven".