36519973 has 4 divisors (see below), whose sum is σ = 41737120. Its totient is φ = 31302828.

The previous prime is 36519949. The next prime is 36519983. The reversal of 36519973 is 37991563.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37991563 = 37 ⋅1026799.

It is a cyclic number.

It is not a de Polignac number, because 36519973 - 2²⁵ = 2965541 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 (36519983) 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, 2608563 + ... + 2608576.

It is an arithmetic number, because the mean of its divisors is an integer number (10434280).

Almost surely, 2^36519973 is an apocalyptic number.

It is an amenable number.

36519973 is a deficient number, since it is larger than the sum of its proper divisors (5217147).

36519973 is an equidigital number, since it uses as much as digits as its factorization.

36519973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5217146.

The product of its digits is 153090, while the sum is 43.

The square root of 36519973 is about 6043.1757379709. The cubic root of 36519973 is about 331.7748661177.

The spelling of 36519973 in words is "thirty-six million, five hundred nineteen thousand, nine hundred seventy-three".