79779433 has 8 divisors (see below), whose sum is σ = 83611008. Its totient is φ = 75978144.

The previous prime is 79779397. The next prime is 79779449. The reversal of 79779433 is 33497797.

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 79779433 - 2²¹ = 77682281 is a prime.

It is a super-3 number, since 3×79779433³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79773433) 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, 2085 + ... + 12802.

It is an arithmetic number, because the mean of its divisors is an integer number (10451376).

Almost surely, 2^79779433 is an apocalyptic number.

It is an amenable number.

79779433 is a deficient number, since it is larger than the sum of its proper divisors (3831575).

79779433 is a wasteful number, since it uses less digits than its factorization.

79779433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15143.

The product of its digits is 1000188, while the sum is 49.

The square root of 79779433 is about 8931.9333293526. The cubic root of 79779433 is about 430.4905758509.

The spelling of 79779433 in words is "seventy-nine million, seven hundred seventy-nine thousand, four hundred thirty-three".