34640657 has 2 divisors, whose sum is σ = 34640658. Its totient is φ = 34640656.

The previous prime is 34640633. The next prime is 34640681. The reversal of 34640657 is 75604643.

It is a balanced prime because it is at equal distance from previous prime (34640633) and next prime (34640681).

It can be written as a sum of positive squares in only one way, i.e., 30958096 + 3682561 = 5564^2 + 1919^2 .

It is a cyclic number.

It is not a de Polignac number, because 34640657 - 2¹² = 34636561 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (34640057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17320328 + 17320329.

It is an arithmetic number, because the mean of its divisors is an integer number (17320329).

Almost surely, 2^34640657 is an apocalyptic number.

It is an amenable number.

34640657 is a deficient number, since it is larger than the sum of its proper divisors (1).

34640657 is an equidigital number, since it uses as much as digits as its factorization.

34640657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 35.

The square root of 34640657 is about 5885.6314019823. The cubic root of 34640657 is about 325.9833161698.

The spelling of 34640657 in words is "thirty-four million, six hundred forty thousand, six hundred fifty-seven".