36999864 has 144 divisors (see below), whose sum is σ = 114528960. Its totient is φ = 10771200.

The previous prime is 36999827. The next prime is 36999877. The reversal of 36999864 is 46899963.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 36999864.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 270004 + ... + 270140.

It is an arithmetic number, because the mean of its divisors is an integer number (795340).

Almost surely, 2^36999864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 36999864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57264480).

36999864 is an abundant number, since it is smaller than the sum of its proper divisors (77529096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

36999864 is a wasteful number, since it uses less digits than its factorization.

36999864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202 (or 184 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 54.

The square root of 36999864 is about 6082.7513511568. The cubic root of 36999864 is about 333.2217768919.

Subtracting 36999864 from its reverse (46899963), we obtain a palindrome (9900099).

The spelling of 36999864 in words is "thirty-six million, nine hundred ninety-nine thousand, eight hundred sixty-four".