390727093 has 4 divisors (see below), whose sum is σ = 390801888. Its totient is φ = 390652300.

The previous prime is 390727091. The next prime is 390727097.

390727093 is nontrivially palindromic in base 10.

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 390727093 - 2¹ = 390727091 is a prime.

It is a super-2 number, since 2×390727093² = 305335322408461298, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390727091) 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, 28921 + ... + 40222.

It is an arithmetic number, because the mean of its divisors is an integer number (97700472).

Almost surely, 2^390727093 is an apocalyptic number.

It is an amenable number.

390727093 is a deficient number, since it is larger than the sum of its proper divisors (74795).

390727093 is an equidigital number, since it uses as much as digits as its factorization.

390727093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74794.

The product of its (nonzero) digits is 71442, while the sum is 40.

The square root of 390727093 is about 19766.8179786227. The cubic root of 390727093 is about 731.0681136444.

The spelling of 390727093 in words is "three hundred ninety million, seven hundred twenty-seven thousand, ninety-three".