33690077 has 2 divisors, whose sum is σ = 33690078. Its totient is φ = 33690076.

The previous prime is 33690067. The next prime is 33690089. The reversal of 33690077 is 77009633.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32137561 + 1552516 = 5669^2 + 1246^2 .

It is a cyclic number.

It is not a de Polignac number, because 33690077 - 2¹⁴ = 33673693 is a prime.

It is a super-2 number, since 2×33690077² = 2270042576531858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33690067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16845038 + 16845039.

It is an arithmetic number, because the mean of its divisors is an integer number (16845039).

Almost surely, 2^33690077 is an apocalyptic number.

It is an amenable number.

33690077 is a deficient number, since it is larger than the sum of its proper divisors (1).

33690077 is an equidigital number, since it uses as much as digits as its factorization.

33690077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23814, while the sum is 35.

The square root of 33690077 is about 5804.3153773723. The cubic root of 33690077 is about 322.9738306588.

The spelling of 33690077 in words is "thirty-three million, six hundred ninety thousand, seventy-seven".