399977035 has 8 divisors (see below), whose sum is σ = 495455616. Its totient is φ = 309659520.

The previous prime is 399976991. The next prime is 399977041. The reversal of 399977035 is 530779993.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 399977035 - 2¹⁹ = 399452747 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1290094 + ... + 1290403.

It is an arithmetic number, because the mean of its divisors is an integer number (61931952).

Almost surely, 2^399977035 is an apocalyptic number.

399977035 is a deficient number, since it is larger than the sum of its proper divisors (95478581).

399977035 is a wasteful number, since it uses less digits than its factorization.

399977035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2580533.

The product of its (nonzero) digits is 1607445, while the sum is 52.

The square root of 399977035 is about 19999.4258667593. The cubic root of 399977035 is about 736.7921988277.

The spelling of 399977035 in words is "three hundred ninety-nine million, nine hundred seventy-seven thousand, thirty-five".