396507193 has 8 divisors (see below), whose sum is σ = 401927400. Its totient is φ = 391108608.

The previous prime is 396507179. The next prime is 396507197. The reversal of 396507193 is 391705693.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 20457529 + 376049664 = 4523^2 + 19392^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 396507193 - 2⁹ = 396506681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (396507197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33393 + ... + 43681.

It is an arithmetic number, because the mean of its divisors is an integer number (50240925).

Almost surely, 2^396507193 is an apocalyptic number.

It is an amenable number.

396507193 is a deficient number, since it is larger than the sum of its proper divisors (5420207).

396507193 is a wasteful number, since it uses less digits than its factorization.

396507193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10811.

The product of its (nonzero) digits is 153090, while the sum is 43.

The square root of 396507193 is about 19912.4883678560. The cubic root of 396507193 is about 734.6554252008.

The spelling of 396507193 in words is "three hundred ninety-six million, five hundred seven thousand, one hundred ninety-three".