396309955 has 4 divisors (see below), whose sum is σ = 475571952. Its totient is φ = 317047960.

The previous prime is 396309929. The next prime is 396310007. The reversal of 396309955 is 559903693.

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

It is not a de Polignac number, because 396309955 - 2⁷ = 396309827 is a prime.

It is a Smith number, since the sum of its digits (49) 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 junction number, because it is equal to n+sod(n) for n = 396309899 and 396309908.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39630991 + ... + 39631000.

It is an arithmetic number, because the mean of its divisors is an integer number (118892988).

Almost surely, 2^396309955 is an apocalyptic number.

396309955 is a deficient number, since it is larger than the sum of its proper divisors (79261997).

396309955 is an equidigital number, since it uses as much as digits as its factorization.

396309955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79261996.

The product of its (nonzero) digits is 984150, while the sum is 49.

The square root of 396309955 is about 19907.5351312009. The cubic root of 396309955 is about 734.5335896641.

The spelling of 396309955 in words is "three hundred ninety-six million, three hundred nine thousand, nine hundred fifty-five".