376639 has 2 divisors, whose sum is σ = 376640. Its totient is φ = 376638.

The previous prime is 376633. The next prime is 376657. The reversal of 376639 is 936673.

It is a weak prime.

It is an emirp because it is prime and its reverse (936673) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 376639 - 2³ = 376631 is a prime.

376639 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (376631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 188319 + 188320.

It is an arithmetic number, because the mean of its divisors is an integer number (188320).

2³⁷⁶⁶³⁹ is an apocalyptic number.

376639 is a deficient number, since it is larger than the sum of its proper divisors (1).

376639 is an equidigital number, since it uses as much as digits as its factorization.

376639 is an odious number, because the sum of its binary digits is odd.

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

The square root of 376639 is about 613.7092145308. The cubic root of 376639 is about 72.2173856941.

Adding to 376639 its sum of digits (34), we get a palindrome (376673).

The spelling of 376639 in words is "three hundred seventy-six thousand, six hundred thirty-nine".