393406607 has 16 divisors (see below), whose sum is σ = 442641024. Its totient is φ = 346500000.

The previous prime is 393406589. The next prime is 393406619. The reversal of 393406607 is 706604393.

It is a happy number.

It is not a de Polignac number, because 393406607 - 2¹⁸ = 393144463 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 (393406627) 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 15 ways as a sum of consecutive naturals, for example, 100232 + ... + 104082.

It is an arithmetic number, because the mean of its divisors is an integer number (27665064).

Almost surely, 2^393406607 is an apocalyptic number.

393406607 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

393406607 is a deficient number, since it is larger than the sum of its proper divisors (49234417).

393406607 is a wasteful number, since it uses less digits than its factorization.

393406607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4150.

The product of its (nonzero) digits is 81648, while the sum is 38.

The square root of 393406607 is about 19834.4802553533. The cubic root of 393406607 is about 732.7354720603.

The spelling of 393406607 in words is "three hundred ninety-three million, four hundred six thousand, six hundred seven".