33690700697 has 2 divisors, whose sum is σ = 33690700698. Its totient is φ = 33690700696.

The previous prime is 33690700619. The next prime is 33690700733. The reversal of 33690700697 is 79600709633.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32492225536 + 1198475161 = 180256^2 + 34619^2 .

It is a cyclic number.

It is not a de Polignac number, because 33690700697 - 2²² = 33686506393 is a prime.

It is a super-2 number, since 2×33690700697² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33690700097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16845350348 + 16845350349.

It is an arithmetic number, because the mean of its divisors is an integer number (16845350349).

Almost surely, 2^33690700697 is an apocalyptic number.

It is an amenable number.

33690700697 is a deficient number, since it is larger than the sum of its proper divisors (1).

33690700697 is an equidigital number, since it uses as much as digits as its factorization.

33690700697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1285956, while the sum is 50.

The spelling of 33690700697 in words is "thirty-three billion, six hundred ninety million, seven hundred thousand, six hundred ninety-seven".