393397107 has 8 divisors (see below), whose sum is σ = 526725120. Its totient is φ = 261166920.

The previous prime is 393397087. The next prime is 393397117. The reversal of 393397107 is 701793393.

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

It is not a de Polignac number, because 393397107 - 2⁷ = 393396979 is a prime.

It is a super-2 number, since 2×393397107² = 309522567591938898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (393397117) 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, 273619 + ... + 275052.

It is an arithmetic number, because the mean of its divisors is an integer number (65840640).

Almost surely, 2^393397107 is an apocalyptic number.

393397107 is a deficient number, since it is larger than the sum of its proper divisors (133328013).

393397107 is a wasteful number, since it uses less digits than its factorization.

393397107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548913.

The product of its (nonzero) digits is 107163, while the sum is 42.

The square root of 393397107 is about 19834.2407719580. The cubic root of 393397107 is about 732.7295739701.

The spelling of 393397107 in words is "three hundred ninety-three million, three hundred ninety-seven thousand, one hundred seven".