3426857 has 4 divisors (see below), whose sum is σ = 3916416. Its totient is φ = 2937300.

The previous prime is 3426853. The next prime is 3426887. The reversal of 3426857 is 7586243.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7586243 = 7 ⋅1083749.

It is a cyclic number.

It is not a de Polignac number, because 3426857 - 2² = 3426853 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3426853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244769 + ... + 244782.

It is an arithmetic number, because the mean of its divisors is an integer number (979104).

Almost surely, 2^3426857 is an apocalyptic number.

It is an amenable number.

3426857 is a deficient number, since it is larger than the sum of its proper divisors (489559).

3426857 is an equidigital number, since it uses as much as digits as its factorization.

3426857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489558.

The product of its digits is 40320, while the sum is 35.

The square root of 3426857 is about 1851.1771930315. The cubic root of 3426857 is about 150.7643503597.

It can be divided in two parts, 34268 and 57, that multiplied together give a triangular number (1953276 = T₁₉₇₆).

The spelling of 3426857 in words is "three million, four hundred twenty-six thousand, eight hundred fifty-seven".