390733 has 4 divisors (see below), whose sum is σ = 446560. Its totient is φ = 334908.

The previous prime is 390727. The next prime is 390737. The reversal of 390733 is 337093.

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 not a de Polignac number, because 390733 - 2¹³ = 382541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 390698 and 390707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390737) 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, 27903 + ... + 27916.

It is an arithmetic number, because the mean of its divisors is an integer number (111640).

2³⁹⁰⁷³³ is an apocalyptic number.

It is an amenable number.

390733 is a deficient number, since it is larger than the sum of its proper divisors (55827).

390733 is an equidigital number, since it uses as much as digits as its factorization.

390733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55826.

The product of its (nonzero) digits is 1701, while the sum is 25.

The square root of 390733 is about 625.0863940289. The cubic root of 390733 is about 73.1071797714.

The spelling of 390733 in words is "three hundred ninety thousand, seven hundred thirty-three".