399267085 has 8 divisors (see below), whose sum is σ = 547566336. Its totient is φ = 273783120.

The previous prime is 399267079. The next prime is 399267119. The reversal of 399267085 is 580762993.

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

It is not a de Polignac number, because 399267085 - 2⁷ = 399266957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5703781 + ... + 5703850.

It is an arithmetic number, because the mean of its divisors is an integer number (68445792).

Almost surely, 2^399267085 is an apocalyptic number.

399267085 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

399267085 is a deficient number, since it is larger than the sum of its proper divisors (148299251).

399267085 is a wasteful number, since it uses less digits than its factorization.

399267085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11407643.

The product of its (nonzero) digits is 816480, while the sum is 49.

The square root of 399267085 is about 19981.6687241081. The cubic root of 399267085 is about 736.3560109388.

The spelling of 399267085 in words is "three hundred ninety-nine million, two hundred sixty-seven thousand, eighty-five".