36731385 has 24 divisors (see below), whose sum is σ = 64873224. Its totient is φ = 19219200.

The previous prime is 36731381. The next prime is 36731411. The reversal of 36731385 is 58313763.

It can be written as a sum of positive squares in 4 ways, for example, as 18481401 + 18249984 = 4299^2 + 4272^2 .

It is not a de Polignac number, because 36731385 - 2² = 36731381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (36731381) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5316 + ... + 10085.

It is an arithmetic number, because the mean of its divisors is an integer number (2703051).

Almost surely, 2^36731385 is an apocalyptic number.

It is an amenable number.

36731385 is a deficient number, since it is larger than the sum of its proper divisors (28141839).

36731385 is a wasteful number, since it uses less digits than its factorization.

36731385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15465 (or 15462 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 36731385 is about 6060.6422926947. The cubic root of 36731385 is about 332.4138431679.

The spelling of 36731385 in words is "thirty-six million, seven hundred thirty-one thousand, three hundred eighty-five".