34691257 has 2 divisors, whose sum is σ = 34691258. Its totient is φ = 34691256.

The previous prime is 34691231. The next prime is 34691273. The reversal of 34691257 is 75219643.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22553001 + 12138256 = 4749^2 + 3484^2 .

It is an emirp because it is prime and its reverse (75219643) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34691257 - 2¹¹ = 34689209 is a prime.

It is not a weakly prime, because it can be changed into another prime (34691297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17345628 + 17345629.

It is an arithmetic number, because the mean of its divisors is an integer number (17345629).

Almost surely, 2^34691257 is an apocalyptic number.

It is an amenable number.

34691257 is a deficient number, since it is larger than the sum of its proper divisors (1).

34691257 is an equidigital number, since it uses as much as digits as its factorization.

34691257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 37.

The square root of 34691257 is about 5889.9284375958. The cubic root of 34691257 is about 326.1419614571.

The spelling of 34691257 in words is "thirty-four million, six hundred ninety-one thousand, two hundred fifty-seven".