3905400793 has 12 divisors (see below), whose sum is σ = 4605254580. Its totient is φ = 3301627392.

The previous prime is 3905400761. The next prime is 3905400853. The reversal of 3905400793 is 3970045093.

It can be written as a sum of positive squares in 2 ways, for example, as 2463831769 + 1441569024 = 49637^2 + 37968^2 .

It is not a de Polignac number, because 3905400793 - 2⁵ = 3905400761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3905400193) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 542328 + ... + 549481.

It is an arithmetic number, because the mean of its divisors is an integer number (383771215).

Almost surely, 2^3905400793 is an apocalyptic number.

It is an amenable number.

3905400793 is a deficient number, since it is larger than the sum of its proper divisors (699853787).

3905400793 is a wasteful number, since it uses less digits than its factorization.

3905400793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091896 (or 1091889 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 40.

The square root of 3905400793 is about 62493.2059747298. The cubic root of 3905400793 is about 1574.7871778280.

The spelling of 3905400793 in words is "three billion, nine hundred five million, four hundred thousand, seven hundred ninety-three".