36698729 has 4 divisors (see below), whose sum is σ = 36715476. Its totient is φ = 36681984.

The previous prime is 36698723. The next prime is 36698743. The reversal of 36698729 is 92789663.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92789663 = 421 ⋅220403.

It can be written as a sum of positive squares in 2 ways, for example, as 18079504 + 18619225 = 4252^2 + 4315^2 .

It is a cyclic number.

It is not a de Polignac number, because 36698729 - 2⁴ = 36698713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36698723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4484 + ... + 9669.

It is an arithmetic number, because the mean of its divisors is an integer number (9178869).

Almost surely, 2^36698729 is an apocalyptic number.

It is an amenable number.

36698729 is a deficient number, since it is larger than the sum of its proper divisors (16747).

36698729 is a wasteful number, since it uses less digits than its factorization.

36698729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16746.

The product of its digits is 979776, while the sum is 50.

The square root of 36698729 is about 6057.9475897370. The cubic root of 36698729 is about 332.3153032316.

The spelling of 36698729 in words is "thirty-six million, six hundred ninety-eight thousand, seven hundred twenty-nine".