37075921 has 3 divisors (see below), whose sum is σ = 37082011. Its totient is φ = 37069832.

The previous prime is 37075867. The next prime is 37075937. The reversal of 37075921 is 12957073.

The square root of 37075921 is 6089.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 12957073 = 23 ⋅563351.

It can be written as a sum of positive squares in only one way, i.e., 8346321 + 28729600 = 2889^2 + 5360^2 .

It is not a de Polignac number, because 37075921 - 2¹⁷ = 36944849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (37075981) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3045 + ... + 9133.

Almost surely, 2^37075921 is an apocalyptic number.

37075921 is the 6089-th square number.

37075921 is the 3045-th centered octagonal number.

It is an amenable number.

37075921 is a deficient number, since it is larger than the sum of its proper divisors (6090).

37075921 is an frugal number, since it uses more digits than its factorization.

37075921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12178 (or 6089 counting only the distinct ones).

The product of its (nonzero) digits is 13230, while the sum is 34.

The cubic root of 37075921 is about 333.4499444230.

The spelling of 37075921 in words is "thirty-seven million, seventy-five thousand, nine hundred twenty-one".