34991351 has 2 divisors, whose sum is σ = 34991352. Its totient is φ = 34991350.

The previous prime is 34991347. The next prime is 34991393. The reversal of 34991351 is 15319943.

It is a weak prime.

It is an emirp because it is prime and its reverse (15319943) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34991351 - 2² = 34991347 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34991311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17495675 + 17495676.

It is an arithmetic number, because the mean of its divisors is an integer number (17495676).

Almost surely, 2^34991351 is an apocalyptic number.

34991351 is a deficient number, since it is larger than the sum of its proper divisors (1).

34991351 is an equidigital number, since it uses as much as digits as its factorization.

34991351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14580, while the sum is 35.

The square root of 34991351 is about 5915.3487640206. The cubic root of 34991351 is about 327.0796845586.

The spelling of 34991351 in words is "thirty-four million, nine hundred ninety-one thousand, three hundred fifty-one".