721674883 has 2 divisors, whose sum is σ = 721674884. Its totient is φ = 721674882.

The previous prime is 721674881. The next prime is 721674901. The reversal of 721674883 is 388476127.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 721674883 - 2¹ = 721674881 is a prime.

Together with 721674881, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (721674881) by changing a digit.

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 as a sum of consecutive naturals, namely, 360837441 + 360837442.

It is an arithmetic number, because the mean of its divisors is an integer number (360837442).

Almost surely, 2^721674883 is an apocalyptic number.

721674883 is a deficient number, since it is larger than the sum of its proper divisors (1).

721674883 is an equidigital number, since it uses as much as digits as its factorization.

721674883 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 451584, while the sum is 46.

The square root of 721674883 is about 26864.0072029472. The cubic root of 721674883 is about 896.9753952420.

The spelling of 721674883 in words is "seven hundred twenty-one million, six hundred seventy-four thousand, eight hundred eighty-three".