34478931 has 16 divisors (see below), whose sum is σ = 47672064. Its totient is φ = 22148064.

The previous prime is 34478929. The next prime is 34478959. The reversal of 34478931 is 13987443.

It is not a de Polignac number, because 34478931 - 2¹ = 34478929 is a prime.

It is a super-2 number, since 2×34478931² = 2377593365805522, 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 34478931.

It is not an unprimeable number, because it can be changed into a prime (34478911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10426 + ... + 13328.

It is an arithmetic number, because the mean of its divisors is an integer number (2979504).

Almost surely, 2^34478931 is an apocalyptic number.

34478931 is a deficient number, since it is larger than the sum of its proper divisors (13193133).

34478931 is a wasteful number, since it uses less digits than its factorization.

34478931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3050.

The product of its digits is 72576, while the sum is 39.

The square root of 34478931 is about 5871.8762759445. The cubic root of 34478931 is about 325.4752211547.

The spelling of 34478931 in words is "thirty-four million, four hundred seventy-eight thousand, nine hundred thirty-one".