34991491 has 16 divisors (see below), whose sum is σ = 38622528. Its totient is φ = 31564800.

The previous prime is 34991477. The next prime is 34991519. The reversal of 34991491 is 19419943.

34991491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 34991491 - 2⁵ = 34991459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34991431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42106 + ... + 42928.

It is an arithmetic number, because the mean of its divisors is an integer number (2413908).

Almost surely, 2^34991491 is an apocalyptic number.

34991491 is a deficient number, since it is larger than the sum of its proper divisors (3631037).

34991491 is a wasteful number, since it uses less digits than its factorization.

34991491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942.

The product of its digits is 34992, while the sum is 40.

The square root of 34991491 is about 5915.3605976305. The cubic root of 34991491 is about 327.0801207721.

The spelling of 34991491 in words is "thirty-four million, nine hundred ninety-one thousand, four hundred ninety-one".