3899748431 has 8 divisors (see below), whose sum is σ = 3934661760. Its totient is φ = 3864969432.

The previous prime is 3899748383. The next prime is 3899748451. The reversal of 3899748431 is 1348479983.

3899748431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3899748431 - 2⁶ = 3899748367 is a prime.

It is a super-2 number, since 2×3899748431² = 30416075650173923522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3899748451) 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, 25196 + ... + 91838.

It is an arithmetic number, because the mean of its divisors is an integer number (491832720).

Almost surely, 2^3899748431 is an apocalyptic number.

3899748431 is a deficient number, since it is larger than the sum of its proper divisors (34913329).

3899748431 is a wasteful number, since it uses less digits than its factorization.

3899748431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67165.

The product of its digits is 5225472, while the sum is 56.

The square root of 3899748431 is about 62447.9657875259. The cubic root of 3899748431 is about 1574.0270710378.

The spelling of 3899748431 in words is "three billion, eight hundred ninety-nine million, seven hundred forty-eight thousand, four hundred thirty-one".