3212870 has 32 divisors (see below), whose sum is σ = 6160320. Its totient is φ = 1203840.

The previous prime is 3212863. The next prime is 3212927. The reversal of 3212870 is 782123.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13916 + ... + 14144.

It is an arithmetic number, because the mean of its divisors is an integer number (192510).

Almost surely, 2^3212870 is an apocalyptic number.

3212870 is a deficient number, since it is larger than the sum of its proper divisors (2947450).

3212870 is a wasteful number, since it uses less digits than its factorization.

3212870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 3212870 is about 1792.4480466669. The cubic root of 3212870 is about 147.5585518762.

Adding to 3212870 its reverse (782123), we get a palindrome (3994993).

The spelling of 3212870 in words is "three million, two hundred twelve thousand, eight hundred seventy".