3964945287 has 8 divisors (see below), whose sum is σ = 5359013104. Its totient is φ = 2607087168.

The previous prime is 3964945277. The next prime is 3964945297. The reversal of 3964945287 is 7825494693.

It is an interprime number because it is at equal distance from previous prime (3964945277) and next prime (3964945297).

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

It is not a de Polignac number, because 3964945287 - 2⁶ = 3964945223 is a prime.

It is a super-2 number, since 2×3964945287² = 31441582257807024738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3964945277) 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, 9052168 + ... + 9052605.

It is an arithmetic number, because the mean of its divisors is an integer number (669876638).

Almost surely, 2^3964945287 is an apocalyptic number.

3964945287 is a deficient number, since it is larger than the sum of its proper divisors (1394067817).

3964945287 is a wasteful number, since it uses less digits than its factorization.

3964945287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18104849.

The product of its digits is 13063680, while the sum is 57.

The square root of 3964945287 is about 62967.8115150908. The cubic root of 3964945287 is about 1582.7502820852.

The spelling of 3964945287 in words is "three billion, nine hundred sixty-four million, nine hundred forty-five thousand, two hundred eighty-seven".