37987994 has 16 divisors (see below), whose sum is σ = 63183456. Its totient is φ = 16983600.

The previous prime is 37987993. The next prime is 37988009. The reversal of 37987994 is 49978973.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (37987993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12812 + ... + 15495.

It is an arithmetic number, because the mean of its divisors is an integer number (3948966).

Almost surely, 2^37987994 is an apocalyptic number.

37987994 is a deficient number, since it is larger than the sum of its proper divisors (25195462).

37987994 is a wasteful number, since it uses less digits than its factorization.

37987994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28381.

The product of its digits is 3429216, while the sum is 56.

The square root of 37987994 is about 6163.4401108472. The cubic root of 37987994 is about 336.1621300409.

It can be divided in two parts, 379879 and 94, that added together give a palindrome (379973).

The spelling of 37987994 in words is "thirty-seven million, nine hundred eighty-seven thousand, nine hundred ninety-four".