3948770989 has 8 divisors (see below), whose sum is σ = 4030092792. Its totient is φ = 3867701760.

The previous prime is 3948770983. The next prime is 3948771053. The reversal of 3948770989 is 9890778493.

It can be written as a sum of positive squares in 4 ways, for example, as 530380900 + 3418390089 = 23030^2 + 58467^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3948770989 - 2⁹ = 3948770477 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 3948770989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3948770983) 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, 31392 + ... + 94249.

It is an arithmetic number, because the mean of its divisors is an integer number (503761599).

Almost surely, 2^3948770989 is an apocalyptic number.

It is an amenable number.

3948770989 is a deficient number, since it is larger than the sum of its proper divisors (81321803).

3948770989 is a wasteful number, since it uses less digits than its factorization.

3948770989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126287.

The product of its (nonzero) digits is 27433728, while the sum is 64.

The square root of 3948770989 is about 62839.2472026838. The cubic root of 3948770989 is about 1580.5951650083.

The spelling of 3948770989 in words is "three billion, nine hundred forty-eight million, seven hundred seventy thousand, nine hundred eighty-nine".