34172491 has 2 divisors, whose sum is σ = 34172492. Its totient is φ = 34172490.

The previous prime is 34172473. The next prime is 34172531. The reversal of 34172491 is 19427143.

It is a weak prime.

It is an emirp because it is prime and its reverse (19427143) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34172491 - 2¹⁷ = 34041419 is a prime.

It is a super-2 number, since 2×34172491² = 2335518282290162, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (34172191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17086245 + 17086246.

It is an arithmetic number, because the mean of its divisors is an integer number (17086246).

Almost surely, 2^34172491 is an apocalyptic number.

34172491 is a deficient number, since it is larger than the sum of its proper divisors (1).

34172491 is an equidigital number, since it uses as much as digits as its factorization.

34172491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 31.

The square root of 34172491 is about 5845.7241638654. The cubic root of 34172491 is about 324.5081032130.

The spelling of 34172491 in words is "thirty-four million, one hundred seventy-two thousand, four hundred ninety-one".