396129667 has 16 divisors (see below), whose sum is σ = 419775552. Its totient is φ = 373063680.

The previous prime is 396129649. The next prime is 396129697. The reversal of 396129667 is 766921693.

It is a de Polignac number, because none of the positive numbers 2^k-396129667 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 396129667.

It is not an unprimeable number, because it can be changed into a prime (396129697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 617667 + ... + 618307.

It is an arithmetic number, because the mean of its divisors is an integer number (26235972).

Almost surely, 2^396129667 is an apocalyptic number.

396129667 is a deficient number, since it is larger than the sum of its proper divisors (23645885).

396129667 is a wasteful number, since it uses less digits than its factorization.

396129667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038.

The product of its digits is 734832, while the sum is 49.

The square root of 396129667 is about 19903.0064814339. The cubic root of 396129667 is about 734.4221889146.

The spelling of 396129667 in words is "three hundred ninety-six million, one hundred twenty-nine thousand, six hundred sixty-seven".