36758921 has 4 divisors (see below), whose sum is σ = 38026500. Its totient is φ = 35491344.

The previous prime is 36758893. The next prime is 36758923. The reversal of 36758921 is 12985763.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12985763 = 7 ⋅1855109.

It can be written as a sum of positive squares in 2 ways, for example, as 24255625 + 12503296 = 4925^2 + 3536^2 .

It is a cyclic number.

It is not a de Polignac number, because 36758921 - 2⁶ = 36758857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36758923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 633746 + ... + 633803.

It is an arithmetic number, because the mean of its divisors is an integer number (9506625).

Almost surely, 2^36758921 is an apocalyptic number.

It is an amenable number.

36758921 is a deficient number, since it is larger than the sum of its proper divisors (1267579).

36758921 is a wasteful number, since it uses less digits than its factorization.

36758921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267578.

The product of its digits is 90720, while the sum is 41.

The square root of 36758921 is about 6062.9135735222. The cubic root of 36758921 is about 332.4968880557.

The spelling of 36758921 in words is "thirty-six million, seven hundred fifty-eight thousand, nine hundred twenty-one".