389377 has 4 divisors (see below), whose sum is σ = 398916. Its totient is φ = 379840.

The previous prime is 389369. The next prime is 389381. The reversal of 389377 is 773983.

It is a Cunningham number, because it is equal to 624²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 773983 = 7 ⋅110569.

It can be written as a sum of positive squares in 2 ways, for example, as 18496 + 370881 = 136^2 + 609^2 .

It is a cyclic number.

It is not a de Polignac number, because 389377 - 2³ = 389369 is a prime.

It is a super-2 number, since 2×389377² = 303228896258, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (389357) 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, 4708 + ... + 4789.

It is an arithmetic number, because the mean of its divisors is an integer number (99729).

2³⁸⁹³⁷⁷ is an apocalyptic number.

It is an amenable number.

389377 is a deficient number, since it is larger than the sum of its proper divisors (9539).

389377 is an equidigital number, since it uses as much as digits as its factorization.

389377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9538.

The product of its digits is 31752, while the sum is 37.

The square root of 389377 is about 624.0008012815. Note that the first 3 decimals coincide. The cubic root of 389377 is about 73.0225113535.

The spelling of 389377 in words is "three hundred eighty-nine thousand, three hundred seventy-seven".