36723457 has 4 divisors (see below), whose sum is σ = 36834736. Its totient is φ = 36612180.

The previous prime is 36723439. The next prime is 36723469. The reversal of 36723457 is 75432763.

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: 75432763 = 7 ⋅10776109.

It is a cyclic number.

It is not a de Polignac number, because 36723457 - 2²³ = 28334849 is a prime.

It is a super-2 number, since 2×36723457² = 2697224588061698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36723857) 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, 55143 + ... + 55804.

It is an arithmetic number, because the mean of its divisors is an integer number (9208684).

Almost surely, 2^36723457 is an apocalyptic number.

It is an amenable number.

36723457 is a deficient number, since it is larger than the sum of its proper divisors (111279).

36723457 is a wasteful number, since it uses less digits than its factorization.

36723457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111278.

The product of its digits is 105840, while the sum is 37.

The square root of 36723457 is about 6059.9882013086. The cubic root of 36723457 is about 332.3899256872.

The spelling of 36723457 in words is "thirty-six million, seven hundred twenty-three thousand, four hundred fifty-seven".