396129703 has 4 divisors (see below), whose sum is σ = 396172000. Its totient is φ = 396087408.

The previous prime is 396129697. The next prime is 396129737. The reversal of 396129703 is 307921693.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 307921693 = 103 ⋅2989531.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-396129703 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 (396129743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150 + ... + 28147.

It is an arithmetic number, because the mean of its divisors is an integer number (99043000).

Almost surely, 2^396129703 is an apocalyptic number.

396129703 is a deficient number, since it is larger than the sum of its proper divisors (42297).

396129703 is a wasteful number, since it uses less digits than its factorization.

396129703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42296.

The product of its (nonzero) digits is 61236, while the sum is 40.

The square root of 396129703 is about 19903.0073858199. The cubic root of 396129703 is about 734.4222111625.

The spelling of 396129703 in words is "three hundred ninety-six million, one hundred twenty-nine thousand, seven hundred three".