3456625 has 8 divisors (see below), whose sum is σ = 4314024. Its totient is φ = 2765200.

The previous prime is 3456617. The next prime is 3456637. The reversal of 3456625 is 5266543.

It can be written as a sum of positive squares in 4 ways, for example, as 998001 + 2458624 = 999^2 + 1568^2 .

It is not a de Polignac number, because 3456625 - 2³ = 3456617 is a prime.

It is a super-4 number, since 4×3456625⁴ (a number of 27 digits) contains 4444 as substring.

It is an Ulam number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13702 + ... + 13951.

It is an arithmetic number, because the mean of its divisors is an integer number (539253).

Almost surely, 2^3456625 is an apocalyptic number.

It is an amenable number.

3456625 is a deficient number, since it is larger than the sum of its proper divisors (857399).

3456625 is an equidigital number, since it uses as much as digits as its factorization.

3456625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27668 (or 27658 counting only the distinct ones).

The product of its digits is 21600, while the sum is 31.

The square root of 3456625 is about 1859.2000968158. The cubic root of 3456625 is about 151.1996394503.

Adding to 3456625 its product of digits (21600), we get a square (3478225 = 1865²).

The spelling of 3456625 in words is "three million, four hundred fifty-six thousand, six hundred twenty-five".