3906256461 has 8 divisors (see below), whose sum is σ = 5234781024. Its totient is φ = 2590951440.

The previous prime is 3906256429. The next prime is 3906256469. The reversal of 3906256461 is 1646526093.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3906256461 - 2⁵ = 3906256429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3906256469) 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, 3304195 + ... + 3305376.

It is an arithmetic number, because the mean of its divisors is an integer number (654347628).

Almost surely, 2^3906256461 is an apocalyptic number.

It is an amenable number.

3906256461 is a deficient number, since it is larger than the sum of its proper divisors (1328524563).

3906256461 is a wasteful number, since it uses less digits than its factorization.

3906256461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6609771.

The product of its (nonzero) digits is 233280, while the sum is 42.

The square root of 3906256461 is about 62500.0516879786. The cubic root of 3906256461 is about 1574.9021806721.

The spelling of 3906256461 in words is "three billion, nine hundred six million, two hundred fifty-six thousand, four hundred sixty-one".