36669631 has 2 divisors, whose sum is σ = 36669632. Its totient is φ = 36669630.

The previous prime is 36669593. The next prime is 36669637. The reversal of 36669631 is 13696663.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 36669631 - 2²¹ = 34572479 is a prime.

It is a super-2 number, since 2×36669631² = 2689323675352322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36669637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18334815 + 18334816.

It is an arithmetic number, because the mean of its divisors is an integer number (18334816).

Almost surely, 2^36669631 is an apocalyptic number.

36669631 is a deficient number, since it is larger than the sum of its proper divisors (1).

36669631 is an equidigital number, since it uses as much as digits as its factorization.

36669631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 104976, while the sum is 40.

The square root of 36669631 is about 6055.5454750171. The cubic root of 36669631 is about 332.2274503481.

The spelling of 36669631 in words is "thirty-six million, six hundred sixty-nine thousand, six hundred thirty-one".