399274703 has 4 divisors (see below), whose sum is σ = 399419160. Its totient is φ = 399130248.

The previous prime is 399274693. The next prime is 399274723. The reversal of 399274703 is 307472993.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-399274703 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 (399274723) 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, 68000 + ... + 73637.

It is an arithmetic number, because the mean of its divisors is an integer number (99854790).

Almost surely, 2^399274703 is an apocalyptic number.

399274703 is a deficient number, since it is larger than the sum of its proper divisors (144457).

399274703 is a wasteful number, since it uses less digits than its factorization.

399274703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144456.

The product of its (nonzero) digits is 285768, while the sum is 44.

The square root of 399274703 is about 19981.8593479186. The cubic root of 399274703 is about 736.3606941235.

The spelling of 399274703 in words is "three hundred ninety-nine million, two hundred seventy-four thousand, seven hundred three".