34991959 has 2 divisors, whose sum is σ = 34991960. Its totient is φ = 34991958.

The previous prime is 34991953. The next prime is 34991987. The reversal of 34991959 is 95919943.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34991959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34991953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17495979 + 17495980.

It is an arithmetic number, because the mean of its divisors is an integer number (17495980).

Almost surely, 2^34991959 is an apocalyptic number.

34991959 is a deficient number, since it is larger than the sum of its proper divisors (1).

34991959 is an equidigital number, since it uses as much as digits as its factorization.

34991959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 393660, while the sum is 49.

The square root of 34991959 is about 5915.4001555263. The cubic root of 34991959 is about 327.0815789629.

The spelling of 34991959 in words is "thirty-four million, nine hundred ninety-one thousand, nine hundred fifty-nine".