396851187 has 8 divisors (see below), whose sum is σ = 530496720. Its totient is φ = 263886560.

The previous prime is 396851107. The next prime is 396851197. The reversal of 396851187 is 781158693.

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 396851187 - 2¹⁴ = 396834803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (396851107) 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, 168864 + ... + 171197.

It is an arithmetic number, because the mean of its divisors is an integer number (66312090).

Almost surely, 2^396851187 is an apocalyptic number.

396851187 is a deficient number, since it is larger than the sum of its proper divisors (133645533).

396851187 is a wasteful number, since it uses less digits than its factorization.

396851187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340453.

The product of its digits is 362880, while the sum is 48.

The square root of 396851187 is about 19921.1241399676. The cubic root of 396851187 is about 734.8678164811.

It can be divided in two parts, 3968 and 51187, that added together give a palindrome (55155).

The spelling of 396851187 in words is "three hundred ninety-six million, eight hundred fifty-one thousand, one hundred eighty-seven".