377989 has 4 divisors (see below), whose sum is σ = 380160. Its totient is φ = 375820.

The previous prime is 377981. The next prime is 377999. The reversal of 377989 is 989773.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 989773 = 47 ⋅21059.

It is a cyclic number.

It is not a de Polignac number, because 377989 - 2³ = 377981 is a prime.

It is a Duffinian number.

377989 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (377981) 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, 799 + ... + 1180.

It is an arithmetic number, because the mean of its divisors is an integer number (95040).

2³⁷⁷⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

377989 is a deficient number, since it is larger than the sum of its proper divisors (2171).

377989 is a wasteful number, since it uses less digits than its factorization.

377989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2170.

The product of its digits is 95256, while the sum is 43.

The square root of 377989 is about 614.8081001418. The cubic root of 377989 is about 72.3035665543.

The spelling of 377989 in words is "three hundred seventy-seven thousand, nine hundred eighty-nine".