380989 has 8 divisors (see below), whose sum is σ = 447488. Its totient is φ = 317520.

The previous prime is 380983. The next prime is 381001. The reversal of 380989 is 989083.

380989 = 32² + 33² + ... + 105².

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 380989 - 2⁵ = 380957 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 477 + ... + 994.

It is an arithmetic number, because the mean of its divisors is an integer number (55936).

2³⁸⁰⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

380989 is a deficient number, since it is larger than the sum of its proper divisors (66499).

380989 is a wasteful number, since it uses less digits than its factorization.

380989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 380989 is about 617.2430639545. The cubic root of 380989 is about 72.4943475577.

It can be divided in two parts, 380 and 989, that added together give a square (1369 = 37²).

The spelling of 380989 in words is "three hundred eighty thousand, nine hundred eighty-nine".