3956477385 has 32 divisors (see below), whose sum is σ = 7353315072. Its totient is φ = 1779022080.

The previous prime is 3956477383. The next prime is 3956477417. The reversal of 3956477385 is 5837746593.

It is not a de Polignac number, because 3956477385 - 2¹ = 3956477383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3956477381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 302454 + ... + 315263.

It is an arithmetic number, because the mean of its divisors is an integer number (229791096).

Almost surely, 2^3956477385 is an apocalyptic number.

3956477385 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3956477385 is a deficient number, since it is larger than the sum of its proper divisors (3396837687).

3956477385 is a wasteful number, since it uses less digits than its factorization.

3956477385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617793.

The product of its digits is 19051200, while the sum is 57.

The square root of 3956477385 is about 62900.5356495475. The cubic root of 3956477385 is about 1581.6227232832.

The spelling of 3956477385 in words is "three billion, nine hundred fifty-six million, four hundred seventy-seven thousand, three hundred eighty-five".