36729391 has 8 divisors (see below), whose sum is σ = 37452800. Its totient is φ = 36012600.

The previous prime is 36729383. The next prime is 36729431. The reversal of 36729391 is 19392763.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 36729391 - 2³ = 36729383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36729331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10390 + ... + 13468.

It is an arithmetic number, because the mean of its divisors is an integer number (4681600).

Almost surely, 2^36729391 is an apocalyptic number.

36729391 is a deficient number, since it is larger than the sum of its proper divisors (723409).

36729391 is a wasteful number, since it uses less digits than its factorization.

36729391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3309.

The product of its digits is 61236, while the sum is 40.

The square root of 36729391 is about 6060.4777864456. The cubic root of 36729391 is about 332.4078279197.

The spelling of 36729391 in words is "thirty-six million, seven hundred twenty-nine thousand, three hundred ninety-one".