389737 has 4 divisors (see below), whose sum is σ = 393300. Its totient is φ = 386176.

The previous prime is 389723. The next prime is 389743. The reversal of 389737 is 737983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 737983 = 577 ⋅1279.

It can be written as a sum of positive squares in 2 ways, for example, as 4096 + 385641 = 64^2 + 621^2 .

It is a cyclic number.

It is not a de Polignac number, because 389737 - 2¹⁵ = 356969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 389696 and 389705.

It is not an unprimeable number, because it can be changed into a prime (389797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1612 + ... + 1837.

It is an arithmetic number, because the mean of its divisors is an integer number (98325).

2³⁸⁹⁷³⁷ is an apocalyptic number.

It is an amenable number.

389737 is a deficient number, since it is larger than the sum of its proper divisors (3563).

389737 is a wasteful number, since it uses less digits than its factorization.

389737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3562.

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

The square root of 389737 is about 624.2891958059. The cubic root of 389737 is about 73.0450088359.

The spelling of 389737 in words is "three hundred eighty-nine thousand, seven hundred thirty-seven".