723212356 has 12 divisors (see below), whose sum is σ = 1295054992. Its totient is φ = 353196648.

The previous prime is 723212341. The next prime is 723212381. The reversal of 723212356 is 653212327.

It is a super-2 number, since 2×723212356² = 1046072223742141472, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

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 3 ways as a sum of consecutive naturals, for example, 2102190 + ... + 2102533.

Almost surely, 2^723212356 is an apocalyptic number.

It is an amenable number.

723212356 is a deficient number, since it is larger than the sum of its proper divisors (571842636).

723212356 is a wasteful number, since it uses less digits than its factorization.

723212356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4204770 (or 4204768 counting only the distinct ones).

The product of its digits is 15120, while the sum is 31.

The square root of 723212356 is about 26892.6078318931. The cubic root of 723212356 is about 897.6119225314.

The spelling of 723212356 in words is "seven hundred twenty-three million, two hundred twelve thousand, three hundred fifty-six".