36692991 has 12 divisors (see below), whose sum is σ = 54294240. Its totient is φ = 23865120.

The previous prime is 36692989. The next prime is 36692993. The reversal of 36692991 is 19929663.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (36692989) and next prime (36692993).

It is not a de Polignac number, because 36692991 - 2¹ = 36692989 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36692993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49351 + ... + 50088.

It is an arithmetic number, because the mean of its divisors is an integer number (4524520).

Almost surely, 2^36692991 is an apocalyptic number.

36692991 is a deficient number, since it is larger than the sum of its proper divisors (17601249).

36692991 is a wasteful number, since it uses less digits than its factorization.

36692991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99486 (or 99483 counting only the distinct ones).

The product of its digits is 157464, while the sum is 45.

The square root of 36692991 is about 6057.4739784831. The cubic root of 36692991 is about 332.2979826989.

The spelling of 36692991 in words is "thirty-six million, six hundred ninety-two thousand, nine hundred ninety-one".