37938965 has 4 divisors (see below), whose sum is σ = 45526764. Its totient is φ = 30351168.

The previous prime is 37938961. The next prime is 37938973. The reversal of 37938965 is 56983973.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56983973 = 41 ⋅1389853.

It can be written as a sum of positive squares in 2 ways, for example, as 11303044 + 26635921 = 3362^2 + 5161^2 .

It is a cyclic number.

It is not a de Polignac number, because 37938965 - 2² = 37938961 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 (37938961) 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, 3793892 + ... + 3793901.

It is an arithmetic number, because the mean of its divisors is an integer number (11381691).

Almost surely, 2^37938965 is an apocalyptic number.

It is an amenable number.

37938965 is a deficient number, since it is larger than the sum of its proper divisors (7587799).

37938965 is an equidigital number, since it uses as much as digits as its factorization.

37938965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7587798.

The product of its digits is 1224720, while the sum is 50.

The square root of 37938965 is about 6159.4614212608. The cubic root of 37938965 is about 336.0174458298.

The spelling of 37938965 in words is "thirty-seven million, nine hundred thirty-eight thousand, nine hundred sixty-five".