3656234 has 4 divisors (see below), whose sum is σ = 5484354.
Its totient is φ = 1828116.
The previous prime is 3656231. The next prime is 3656239. The reversal of 3656234 is 4326563.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4326563 = 367 ⋅11789.
It can be written as a sum of positive squares in only one way, i.e., 1974025 + 1682209 = 1405^2 + 1297^2
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 3656197 and 3656206.
It is not an unprimeable number, because it can be changed into a prime (3656231) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 914057 + ... + 914060.
Almost surely, 23656234 is an apocalyptic number.
3656234 is a deficient number, since it is larger than the sum of its proper divisors (1828120).
3656234 is a wasteful number, since it uses less digits than its factorization.
3656234 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1828119.
The product of its digits is 12960, while the sum is 29.
The square root of 3656234 is about 1912.1281337818.
The cubic root of 3656234 is about 154.0557789735.
The spelling of 3656234 in words is "three million, six hundred fifty-six thousand, two hundred thirty-four".