36469721 has 4 divisors (see below), whose sum is σ = 38389200. Its totient is φ = 34550244.

The previous prime is 36469717. The next prime is 36469739. The reversal of 36469721 is 12796463.

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.

It is a cyclic number.

It is not a de Polignac number, because 36469721 - 2² = 36469717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (36469751) 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, 959711 + ... + 959748.

It is an arithmetic number, because the mean of its divisors is an integer number (9597300).

Almost surely, 2^36469721 is an apocalyptic number.

It is an amenable number.

36469721 is a deficient number, since it is larger than the sum of its proper divisors (1919479).

36469721 is a wasteful number, since it uses less digits than its factorization.

36469721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1919478.

The product of its digits is 54432, while the sum is 38.

The square root of 36469721 is about 6039.0165590102. The cubic root of 36469721 is about 331.6226206277.

The spelling of 36469721 in words is "thirty-six million, four hundred sixty-nine thousand, seven hundred twenty-one".