396217501 has 4 divisors (see below), whose sum is σ = 401645212. Its totient is φ = 390789792.

The previous prime is 396217499. The next prime is 396217519. The reversal of 396217501 is 105712693.

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 283114276 + 113103225 = 16826^2 + 10635^2 .

It is a cyclic number.

It is not a de Polignac number, because 396217501 - 2¹ = 396217499 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 (396277501) 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, 2713746 + ... + 2713891.

It is an arithmetic number, because the mean of its divisors is an integer number (100411303).

Almost surely, 2^396217501 is an apocalyptic number.

It is an amenable number.

396217501 is a deficient number, since it is larger than the sum of its proper divisors (5427711).

396217501 is an equidigital number, since it uses as much as digits as its factorization.

396217501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5427710.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 396217501 is about 19905.2129101901. The cubic root of 396217501 is about 734.4764661515.

The spelling of 396217501 in words is "three hundred ninety-six million, two hundred seventeen thousand, five hundred one".