3959028861 has 16 divisors (see below), whose sum is σ = 5361890304. Its totient is φ = 2597824944.

The previous prime is 3959028859. The next prime is 3959028863. The reversal of 3959028861 is 1688209593.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3959028859) and next prime (3959028863).

It is not a de Polignac number, because 3959028861 - 2¹ = 3959028859 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3959028863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 259306 + ... + 274148.

It is an arithmetic number, because the mean of its divisors is an integer number (335118144).

Almost surely, 2^3959028861 is an apocalyptic number.

It is an amenable number.

3959028861 is a deficient number, since it is larger than the sum of its proper divisors (1402861443).

3959028861 is a wasteful number, since it uses less digits than its factorization.

3959028861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16240.

The product of its (nonzero) digits is 933120, while the sum is 51.

The square root of 3959028861 is about 62920.8142111972. The cubic root of 3959028861 is about 1581.9626388920.

The spelling of 3959028861 in words is "three billion, nine hundred fifty-nine million, twenty-eight thousand, eight hundred sixty-one".