36999965 has 4 divisors (see below), whose sum is σ = 44399964. Its totient is φ = 29599968.

The previous prime is 36999961. The next prime is 36999979. The reversal of 36999965 is 56999963.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21215236 + 15784729 = 4606^2 + 3973^2 .

It is a cyclic number.

It is not a de Polignac number, because 36999965 - 2² = 36999961 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 36999965.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36999961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3699992 + ... + 3700001.

It is an arithmetic number, because the mean of its divisors is an integer number (11099991).

Almost surely, 2^36999965 is an apocalyptic number.

It is an amenable number.

36999965 is a deficient number, since it is larger than the sum of its proper divisors (7399999).

36999965 is an equidigital number, since it uses as much as digits as its factorization.

36999965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7399998.

The product of its digits is 3542940, while the sum is 56.

The square root of 36999965 is about 6082.7596533153. The cubic root of 36999965 is about 333.2220800945. Note that the first 3 decimals are identical.

It can be divided in two parts, 36 and 999965, that added together give a palindrome (1000001).

The spelling of 36999965 in words is "thirty-six million, nine hundred ninety-nine thousand, nine hundred sixty-five".