719421321 has 16 divisors (see below), whose sum is σ = 973762560. Its totient is φ = 472377360.

The previous prime is 719421293. The next prime is 719421323. The reversal of 719421321 is 123124917.

It is not a de Polignac number, because 719421321 - 2⁵ = 719421289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (719421323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98626 + ... + 105668.

It is an arithmetic number, because the mean of its divisors is an integer number (60860160).

Almost surely, 2^719421321 is an apocalyptic number.

It is an amenable number.

719421321 is a deficient number, since it is larger than the sum of its proper divisors (254341239).

719421321 is a wasteful number, since it uses less digits than its factorization.

719421321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7556.

The product of its digits is 3024, while the sum is 30.

The square root of 719421321 is about 26822.0305159770. The cubic root of 719421321 is about 896.0407650624.

The spelling of 719421321 in words is "seven hundred nineteen million, four hundred twenty-one thousand, three hundred twenty-one".