36811864 has 8 divisors (see below), whose sum is σ = 69022260. Its totient is φ = 18405928.

The previous prime is 36811861. The next prime is 36811871. The reversal of 36811864 is 46811863.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×36811864² = 2710226662308992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36811861) by changing a digit.

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 as a sum of consecutive naturals, namely, 2300734 + ... + 2300749.

Almost surely, 2^36811864 is an apocalyptic number.

It is an amenable number.

36811864 is a deficient number, since it is larger than the sum of its proper divisors (32210396).

36811864 is a wasteful number, since it uses less digits than its factorization.

36811864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4601489 (or 4601485 counting only the distinct ones).

The product of its digits is 27648, while the sum is 37.

The square root of 36811864 is about 6067.2781376825. The cubic root of 36811864 is about 332.6564406013.

Subtracting 36811864 from its reverse (46811863), we obtain a palindrome (9999999).

It can be divided in two parts, 36811 and 864, that added together give a triangular number (37675 = T₂₇₄).

The spelling of 36811864 in words is "thirty-six million, eight hundred eleven thousand, eight hundred sixty-four".