36499939 has 4 divisors (see below), whose sum is σ = 41714224. Its totient is φ = 31285656.

The previous prime is 36499921. The next prime is 36499961. The reversal of 36499939 is 93999463.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93999463 = 151 ⋅622513.

It is a cyclic number.

It is not a de Polignac number, because 36499939 - 2⁵ = 36499907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36499979) 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, 2607132 + ... + 2607145.

It is an arithmetic number, because the mean of its divisors is an integer number (10428556).

Almost surely, 2^36499939 is an apocalyptic number.

36499939 is a deficient number, since it is larger than the sum of its proper divisors (5214285).

36499939 is an equidigital number, since it uses as much as digits as its factorization.

36499939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5214284.

The product of its digits is 1417176, while the sum is 52.

The square root of 36499939 is about 6041.5179383993. The cubic root of 36499939 is about 331.7141870526.

The spelling of 36499939 in words is "thirty-six million, four hundred ninety-nine thousand, nine hundred thirty-nine".