37399 has 4 divisors (see below), whose sum is σ = 37800. Its totient is φ = 37000.

The previous prime is 37397. The next prime is 37409. The reversal of 37399 is 99373.

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: 99373 = 43 ⋅2311.

It is a cyclic number.

It is not a de Polignac number, because 37399 - 2¹ = 37397 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 37399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24 + ... + 274.

It is an arithmetic number, because the mean of its divisors is an integer number (9450).

2³⁷³⁹⁹ is an apocalyptic number.

37399 is a deficient number, since it is larger than the sum of its proper divisors (401).

37399 is a wasteful number, since it uses less digits than its factorization.

37399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400.

The product of its digits is 5103, while the sum is 31.

The square root of 37399 is about 193.3882106024. The cubic root of 37399 is about 33.4415703840.

The spelling of 37399 in words is "thirty-seven thousand, three hundred ninety-nine".