34872979 has 4 divisors (see below), whose sum is σ = 34916176. Its totient is φ = 34829784.

The previous prime is 34872973. The next prime is 34872983. The reversal of 34872979 is 97927843.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 34872979 - 2²³ = 26484371 is a prime.

It is a super-2 number, since 2×34872979² = 2432249328668882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34872973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20364 + ... + 22009.

It is an arithmetic number, because the mean of its divisors is an integer number (8729044).

Almost surely, 2^34872979 is an apocalyptic number.

34872979 is a deficient number, since it is larger than the sum of its proper divisors (43197).

34872979 is an equidigital number, since it uses as much as digits as its factorization.

34872979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43196.

The product of its digits is 762048, while the sum is 49.

The square root of 34872979 is about 5905.3347915254. The cubic root of 34872979 is about 326.7104426734.

The spelling of 34872979 in words is "thirty-four million, eight hundred seventy-two thousand, nine hundred seventy-nine".