3985477507 has 8 divisors (see below), whose sum is σ = 4349007360. Its totient is φ = 3622149960.

The previous prime is 3985477493. The next prime is 3985477519. The reversal of 3985477507 is 7057745893.

It is a happy number.

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-3985477507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3985477537) 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, 7803 + ... + 89620.

It is an arithmetic number, because the mean of its divisors is an integer number (543625920).

Almost surely, 2^3985477507 is an apocalyptic number.

3985477507 is a deficient number, since it is larger than the sum of its proper divisors (363529853).

3985477507 is a wasteful number, since it uses less digits than its factorization.

3985477507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101153.

The product of its (nonzero) digits is 7408800, while the sum is 55.

The square root of 3985477507 is about 63130.6384174911. The cubic root of 3985477507 is about 1585.4776373000.

The spelling of 3985477507 in words is "three billion, nine hundred eighty-five million, four hundred seventy-seven thousand, five hundred seven".