396093917 has 4 divisors (see below), whose sum is σ = 406799196. Its totient is φ = 385388640.

The previous prime is 396093899. The next prime is 396093959. The reversal of 396093917 is 719390693.

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 277588921 + 118504996 = 16661^2 + 10886^2 .

It is a cyclic number.

It is not a de Polignac number, because 396093917 - 2¹⁸ = 395831773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396090917) 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, 5352584 + ... + 5352657.

It is an arithmetic number, because the mean of its divisors is an integer number (101699799).

Almost surely, 2^396093917 is an apocalyptic number.

396093917 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

396093917 is a deficient number, since it is larger than the sum of its proper divisors (10705279).

396093917 is a wasteful number, since it uses less digits than its factorization.

396093917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10705278.

The product of its (nonzero) digits is 275562, while the sum is 47.

The square root of 396093917 is about 19902.1083556492. The cubic root of 396093917 is about 734.4000948165.

The spelling of 396093917 in words is "three hundred ninety-six million, ninety-three thousand, nine hundred seventeen".