367639 has 4 divisors (see below), whose sum is σ = 368856. Its totient is φ = 366424.

The previous prime is 367637. The next prime is 367649. The reversal of 367639 is 936763.

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: 936763 = 149 ⋅6287.

It is a cyclic number.

It is not a de Polignac number, because 367639 - 2¹ = 367637 is a prime.

It is an Ulam number.

It is a Duffinian number.

367639 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (367637) 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, 237 + ... + 889.

It is an arithmetic number, because the mean of its divisors is an integer number (92214).

2³⁶⁷⁶³⁹ is an apocalyptic number.

367639 is a deficient number, since it is larger than the sum of its proper divisors (1217).

367639 is an equidigital number, since it uses as much as digits as its factorization.

367639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1216.

The product of its digits is 20412, while the sum is 34.

The square root of 367639 is about 606.3324170783. The cubic root of 367639 is about 71.6375171401.

The spelling of 367639 in words is "three hundred sixty-seven thousand, six hundred thirty-nine".