397182107 has 8 divisors (see below), whose sum is σ = 455110656. Its totient is φ = 339550632.

The previous prime is 397182091. The next prime is 397182109. The reversal of 397182107 is 701281793.

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 397182107 - 2⁴ = 397182091 is a prime.

It is a super-2 number, since 2×397182107² = 315507252241918898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (397182109) 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, 71393 + ... + 76754.

It is an arithmetic number, because the mean of its divisors is an integer number (56888832).

Almost surely, 2^397182107 is an apocalyptic number.

397182107 is a deficient number, since it is larger than the sum of its proper divisors (57928549).

397182107 is a wasteful number, since it uses less digits than its factorization.

397182107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148537.

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 397182107 is about 19929.4281654040. The cubic root of 397182107 is about 735.0720197218.

The spelling of 397182107 in words is "three hundred ninety-seven million, one hundred eighty-two thousand, one hundred seven".