36513923 has 4 divisors (see below), whose sum is σ = 37363128. Its totient is φ = 35664720.

The previous prime is 36513907. The next prime is 36513959. The reversal of 36513923 is 32931563.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32931563 = 7 ⋅4704509.

It is a cyclic number.

It is not a de Polignac number, because 36513923 - 2⁴ = 36513907 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 36513923.

It is not an unprimeable number, because it can be changed into a prime (36513973) 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, 424538 + ... + 424623.

It is an arithmetic number, because the mean of its divisors is an integer number (9340782).

Almost surely, 2^36513923 is an apocalyptic number.

36513923 is a deficient number, since it is larger than the sum of its proper divisors (849205).

36513923 is an equidigital number, since it uses as much as digits as its factorization.

36513923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849204.

The product of its digits is 14580, while the sum is 32.

The square root of 36513923 is about 6042.6751526125. The cubic root of 36513923 is about 331.7565441912.

The spelling of 36513923 in words is "thirty-six million, five hundred thirteen thousand, nine hundred twenty-three".