3964399287 has 8 divisors (see below), whose sum is σ = 5398331136. Its totient is φ = 2586700152.

The previous prime is 3964399261. The next prime is 3964399339. The reversal of 3964399287 is 7829934693.

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

It is a de Polignac number, because none of the positive numbers 2^k-3964399287 is a prime.

It is a super-2 number, since 2×3964399287² = 31432923413532216738, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3964399287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3964399207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14058013 + ... + 14058294.

It is an arithmetic number, because the mean of its divisors is an integer number (674791392).

Almost surely, 2^3964399287 is an apocalyptic number.

3964399287 is a deficient number, since it is larger than the sum of its proper divisors (1433931849).

3964399287 is a wasteful number, since it uses less digits than its factorization.

3964399287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28116357.

The product of its digits is 17635968, while the sum is 60.

The square root of 3964399287 is about 62963.4758173340. The cubic root of 3964399287 is about 1582.6776269149.

The spelling of 3964399287 in words is "three billion, nine hundred sixty-four million, three hundred ninety-nine thousand, two hundred eighty-seven".