399080303 has 4 divisors (see below), whose sum is σ = 400793328. Its totient is φ = 397367280.

The previous prime is 399080263. The next prime is 399080309. The reversal of 399080303 is 303080993.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 303080993 = 1321 ⋅229433.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-399080303 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 (399080309) 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, 856163 + ... + 856628.

It is an arithmetic number, because the mean of its divisors is an integer number (100198332).

Almost surely, 2^399080303 is an apocalyptic number.

399080303 is a deficient number, since it is larger than the sum of its proper divisors (1713025).

399080303 is a wasteful number, since it uses less digits than its factorization.

399080303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1713024.

The product of its (nonzero) digits is 17496, while the sum is 35.

The square root of 399080303 is about 19976.9943434942. The cubic root of 399080303 is about 736.2411675950.

The spelling of 399080303 in words is "three hundred ninety-nine million, eighty thousand, three hundred three".