34472991 has 32 divisors (see below), whose sum is σ = 56567808. Its totient is φ = 18224640.

The previous prime is 34472989. The next prime is 34473013. The reversal of 34472991 is 19927443.

It is not a de Polignac number, because 34472991 - 2¹ = 34472989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34472891) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20986 + ... + 22568.

It is an arithmetic number, because the mean of its divisors is an integer number (1767744).

Almost surely, 2^34472991 is an apocalyptic number.

34472991 is a deficient number, since it is larger than the sum of its proper divisors (22094817).

34472991 is a wasteful number, since it uses less digits than its factorization.

34472991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1671.

The product of its digits is 54432, while the sum is 39.

The square root of 34472991 is about 5871.3704533099. The cubic root of 34472991 is about 325.4565292194.

The spelling of 34472991 in words is "thirty-four million, four hundred seventy-two thousand, nine hundred ninety-one".