3952560891 has 4 divisors (see below), whose sum is σ = 5270081192. Its totient is φ = 2635040592.

The previous prime is 3952560883. The next prime is 3952560907. The reversal of 3952560891 is 1980652593.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3952560891 - 2³ = 3952560883 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3952560891.

It is not an unprimeable number, because it can be changed into a prime (3952560091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 658760146 + ... + 658760151.

It is an arithmetic number, because the mean of its divisors is an integer number (1317520298).

Almost surely, 2^3952560891 is an apocalyptic number.

3952560891 is a deficient number, since it is larger than the sum of its proper divisors (1317520301).

3952560891 is a wasteful number, since it uses less digits than its factorization.

3952560891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1317520300.

The product of its (nonzero) digits is 583200, while the sum is 48.

The square root of 3952560891 is about 62869.3955036948. The cubic root of 3952560891 is about 1581.1006712686.

The spelling of 3952560891 in words is "three billion, nine hundred fifty-two million, five hundred sixty thousand, eight hundred ninety-one".