34404991 has 16 divisors (see below), whose sum is σ = 39679200. Its totient is φ = 29611008.

The previous prime is 34404989. The next prime is 34405039. The reversal of 34404991 is 19940443.

It is not a de Polignac number, because 34404991 - 2¹ = 34404989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34404971) 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, 7531 + ... + 11203.

It is an arithmetic number, because the mean of its divisors is an integer number (2479950).

Almost surely, 2^34404991 is an apocalyptic number.

34404991 is a deficient number, since it is larger than the sum of its proper divisors (5274209).

34404991 is a wasteful number, since it uses less digits than its factorization.

34404991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3738.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 34404991 is about 5865.5767832328. The cubic root of 34404991 is about 325.2423943184.

The spelling of 34404991 in words is "thirty-four million, four hundred four thousand, nine hundred ninety-one".