3964945285 has 16 divisors (see below), whose sum is σ = 5448473856. Its totient is φ = 2713402368.

The previous prime is 3964945277. The next prime is 3964945297. The reversal of 3964945285 is 5825494693.

It is a cyclic number.

It is not a de Polignac number, because 3964945285 - 2³ = 3964945277 is a prime.

It is a super-2 number, since 2×3964945285² = 31441582226087462450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95004 + ... + 130213.

It is an arithmetic number, because the mean of its divisors is an integer number (340529616).

Almost surely, 2^3964945285 is an apocalyptic number.

3964945285 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3964945285 is a deficient number, since it is larger than the sum of its proper divisors (1483528571).

3964945285 is a wasteful number, since it uses less digits than its factorization.

3964945285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225732.

The product of its digits is 9331200, while the sum is 55.

The square root of 3964945285 is about 62967.8114992097. The cubic root of 3964945285 is about 1582.7502818191.

The spelling of 3964945285 in words is "three billion, nine hundred sixty-four million, nine hundred forty-five thousand, two hundred eighty-five".