36787780 has 24 divisors (see below), whose sum is σ = 77654808. Its totient is φ = 14638848.

The previous prime is 36787759. The next prime is 36787801. The reversal of 36787780 is 8778763.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (36787759) and next prime (36787801).

It can be written as a sum of positive squares in 4 ways, for example, as 23348224 + 13439556 = 4832^2 + 3666^2 .

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 36787780.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 729 + ... + 8608.

It is an arithmetic number, because the mean of its divisors is an integer number (3235617).

Almost surely, 2^36787780 is an apocalyptic number.

It is an amenable number.

36787780 is an abundant number, since it is smaller than the sum of its proper divisors (40867028).

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

36787780 is a wasteful number, since it uses less digits than its factorization.

36787780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9543 (or 9541 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 46.

The square root of 36787780 is about 6065.2930679399. The cubic root of 36787780 is about 332.5838784372.

The spelling of 36787780 in words is "thirty-six million, seven hundred eighty-seven thousand, seven hundred eighty".