396616251 has 8 divisors (see below), whose sum is σ = 529508880. Its totient is φ = 264067232.

The previous prime is 396616223. The next prime is 396616271. The reversal of 396616251 is 152616693.

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 396616251 - 2¹¹ = 396614203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (396616211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83196 + ... + 87833.

It is an arithmetic number, because the mean of its divisors is an integer number (66188610).

Almost surely, 2^396616251 is an apocalyptic number.

396616251 is a deficient number, since it is larger than the sum of its proper divisors (132892629).

396616251 is a wasteful number, since it uses less digits than its factorization.

396616251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171805.

The product of its digits is 58320, while the sum is 39.

The square root of 396616251 is about 19915.2266118164. The cubic root of 396616251 is about 734.7227738797.

The spelling of 396616251 in words is "three hundred ninety-six million, six hundred sixteen thousand, two hundred fifty-one".