389690053 has 4 divisors (see below), whose sum is σ = 390055660. Its totient is φ = 389324448.

The previous prime is 389690033. The next prime is 389690069. The reversal of 389690053 is 350096983.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 222815329 + 166874724 = 14927^2 + 12918^2 .

It is a cyclic number.

It is not a de Polignac number, because 389690053 - 2²¹ = 387592901 is a prime.

It is a super-3 number, since 3×389690053³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 389689991 and 389690009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389690033) 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, 181200 + ... + 183337.

It is an arithmetic number, because the mean of its divisors is an integer number (97513915).

Almost surely, 2^389690053 is an apocalyptic number.

It is an amenable number.

389690053 is a deficient number, since it is larger than the sum of its proper divisors (365607).

389690053 is a wasteful number, since it uses less digits than its factorization.

389690053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365606.

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 389690053 is about 19740.5687101461. The cubic root of 389690053 is about 730.4207576246.

The spelling of 389690053 in words is "three hundred eighty-nine million, six hundred ninety thousand, fifty-three".