34689257 has 4 divisors (see below), whose sum is σ = 34938960. Its totient is φ = 34439556.

The previous prime is 34689253. The next prime is 34689271. The reversal of 34689257 is 75298643.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 34689257 - 2² = 34689253 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34689253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124643 + ... + 124920.

It is an arithmetic number, because the mean of its divisors is an integer number (8734740).

Almost surely, 2^34689257 is an apocalyptic number.

It is an amenable number.

34689257 is a deficient number, since it is larger than the sum of its proper divisors (249703).

34689257 is a wasteful number, since it uses less digits than its factorization.

34689257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249702.

The product of its digits is 362880, while the sum is 44.

The square root of 34689257 is about 5889.7586537990. The cubic root of 34689257 is about 326.1356938217.

The spelling of 34689257 in words is "thirty-four million, six hundred eighty-nine thousand, two hundred fifty-seven".