34645978 has 8 divisors (see below), whose sum is σ = 52042068. Its totient is φ = 17298624.

The previous prime is 34645969. The next prime is 34645991. The reversal of 34645978 is 87954643.

It can be written as a sum of positive squares in 2 ways, for example, as 24830289 + 9815689 = 4983^2 + 3133^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10351 + ... + 13282.

Almost surely, 2^34645978 is an apocalyptic number.

34645978 is a deficient number, since it is larger than the sum of its proper divisors (17396090).

34645978 is a wasteful number, since it uses less digits than its factorization.

34645978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24368.

The product of its digits is 725760, while the sum is 46.

The square root of 34645978 is about 5886.0834176896. The cubic root of 34645978 is about 326.0000062730. Note that the first 5 decimals are identical.

The spelling of 34645978 in words is "thirty-four million, six hundred forty-five thousand, nine hundred seventy-eight".