367999 has 4 divisors (see below), whose sum is σ = 389664. Its totient is φ = 346336.

The previous prime is 367957. The next prime is 368021. The reversal of 367999 is 999763.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-367999 is a prime.

It is a Duffinian number.

367999 is a modest number, since divided by 999 gives 367 as remainder.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (367909) 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, 10807 + ... + 10840.

It is an arithmetic number, because the mean of its divisors is an integer number (97416).

2³⁶⁷⁹⁹⁹ is an apocalyptic number.

367999 is a deficient number, since it is larger than the sum of its proper divisors (21665).

367999 is a wasteful number, since it uses less digits than its factorization.

367999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21664.

The product of its digits is 91854, while the sum is 43.

The square root of 367999 is about 606.6292112980. The cubic root of 367999 is about 71.6608925100.

The spelling of 367999 in words is "three hundred sixty-seven thousand, nine hundred ninety-nine".