389862953 has 4 divisors (see below), whose sum is σ = 393506640. Its totient is φ = 386219268.

The previous prime is 389862937. The next prime is 389862961. The reversal of 389862953 is 359268983.

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.

It is a cyclic number.

It is not a de Polignac number, because 389862953 - 2⁴ = 389862937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 389862895 and 389862904.

It is not an unprimeable number, because it can be changed into a prime (389862353) 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, 1821683 + ... + 1821896.

It is an arithmetic number, because the mean of its divisors is an integer number (98376660).

Almost surely, 2^389862953 is an apocalyptic number.

It is an amenable number.

389862953 is a deficient number, since it is larger than the sum of its proper divisors (3643687).

389862953 is a wasteful number, since it uses less digits than its factorization.

389862953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3643686.

The product of its digits is 2799360, while the sum is 53.

The square root of 389862953 is about 19744.9475309508. The cubic root of 389862953 is about 730.5287674605.

The spelling of 389862953 in words is "three hundred eighty-nine million, eight hundred sixty-two thousand, nine hundred fifty-three".