3213456 has 20 divisors (see below), whose sum is σ = 8301552. Its totient is φ = 1071136.

The previous prime is 3213439. The next prime is 3213473. The reversal of 3213456 is 6543123.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3213439) and next prime (3213473).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33426 + ... + 33521.

Almost surely, 2^3213456 is an apocalyptic number.

It is an amenable number.

3213456 is an abundant number, since it is smaller than the sum of its proper divisors (5088096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3213456 is a wasteful number, since it uses less digits than its factorization.

3213456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66958 (or 66952 counting only the distinct ones).

The product of its digits is 2160, while the sum is 24.

The square root of 3213456 is about 1792.6115028081. The cubic root of 3213456 is about 147.5675224699.

Adding to 3213456 its reverse (6543123), we get a palindrome (9756579).

The spelling of 3213456 in words is "three million, two hundred thirteen thousand, four hundred fifty-six".