3806457 has 8 divisors (see below), whose sum is σ = 5139840. Its totient is φ = 2505360.

The previous prime is 3806447. The next prime is 3806501. The reversal of 3806457 is 7546083.

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

It is a de Polignac number, because none of the positive numbers 2^k-3806457 is a prime.

It is a super-2 number, since 2×3806457² = 28978229785698, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (3806437) 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, 7794 + ... + 8267.

It is an arithmetic number, because the mean of its divisors is an integer number (642480).

Almost surely, 2^3806457 is an apocalyptic number.

It is an amenable number.

3806457 is a deficient number, since it is larger than the sum of its proper divisors (1333383).

3806457 is a wasteful number, since it uses less digits than its factorization.

3806457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16143.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 3806457 is about 1951.0143515618. The cubic root of 3806457 is about 156.1374117991.

The spelling of 3806457 in words is "three million, eight hundred six thousand, four hundred fifty-seven".