3898971506 has 16 divisors (see below), whose sum is σ = 6031330200. Its totient is φ = 1889166720.

The previous prime is 3898971493. The next prime is 3898971511. The reversal of 3898971506 is 6051798983.

3898971506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 469112281 + 3429859225 = 21659^2 + 58565^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147341 + ... + 171776.

Almost surely, 2^3898971506 is an apocalyptic number.

3898971506 is a deficient number, since it is larger than the sum of its proper divisors (2132358694).

3898971506 is a wasteful number, since it uses less digits than its factorization.

3898971506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319309.

The product of its (nonzero) digits is 3265920, while the sum is 56.

The square root of 3898971506 is about 62441.7448987454. The cubic root of 3898971506 is about 1573.9225359015.

The spelling of 3898971506 in words is "three billion, eight hundred ninety-eight million, nine hundred seventy-one thousand, five hundred six".