3946406457 has 16 divisors (see below), whose sum is σ = 6330076160. Its totient is φ = 2136400272.

The previous prime is 3946406441. The next prime is 3946406459. The reversal of 3946406457 is 7546046493.

It is not a de Polignac number, because 3946406457 - 2⁴ = 3946406441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3946406459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4944973 + ... + 4945770.

It is an arithmetic number, because the mean of its divisors is an integer number (395629760).

Almost surely, 2^3946406457 is an apocalyptic number.

It is an amenable number.

3946406457 is a deficient number, since it is larger than the sum of its proper divisors (2383669703).

3946406457 is a wasteful number, since it uses less digits than its factorization.

3946406457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9890772.

The product of its (nonzero) digits is 2177280, while the sum is 48.

The square root of 3946406457 is about 62820.4302516307. The cubic root of 3946406457 is about 1580.2796141625.

The spelling of 3946406457 in words is "three billion, nine hundred forty-six million, four hundred six thousand, four hundred fifty-seven".