3212656403 has 12 divisors (see below), whose sum is σ = 3520129848. Its totient is φ = 2907807840.

The previous prime is 3212656397. The next prime is 3212656409. The reversal of 3212656403 is 3046562123.

It is an interprime number because it is at equal distance from previous prime (3212656397) and next prime (3212656409).

It is not a de Polignac number, because 3212656403 - 2⁶ = 3212656339 is a prime.

It is a super-2 number, since 2×3212656403² = 20642322327473796818, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3212656403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3212656409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 625775 + ... + 630887.

It is an arithmetic number, because the mean of its divisors is an integer number (293344154).

Almost surely, 2^3212656403 is an apocalyptic number.

3212656403 is a deficient number, since it is larger than the sum of its proper divisors (307473445).

3212656403 is an equidigital number, since it uses as much as digits as its factorization.

3212656403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5602 (or 5363 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 3212656403 is about 56680.2999550990. The cubic root of 3212656403 is about 1475.5528182347.

The spelling of 3212656403 in words is "three billion, two hundred twelve million, six hundred fifty-six thousand, four hundred three".