719678401 has 16 divisors (see below), whose sum is σ = 806541120. Its totient is φ = 637842240.

The previous prime is 719678369. The next prime is 719678411. The reversal of 719678401 is 104876917.

It is a cyclic number.

It is not a de Polignac number, because 719678401 - 2⁵ = 719678369 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (719678411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22071 + ... + 43891.

It is an arithmetic number, because the mean of its divisors is an integer number (50408820).

Almost surely, 2^719678401 is an apocalyptic number.

It is an amenable number.

719678401 is a deficient number, since it is larger than the sum of its proper divisors (86862719).

719678401 is a wasteful number, since it uses less digits than its factorization.

719678401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21936.

The product of its (nonzero) digits is 84672, while the sum is 43.

The square root of 719678401 is about 26826.8224171257. The cubic root of 719678401 is about 896.1474835782.

The spelling of 719678401 in words is "seven hundred nineteen million, six hundred seventy-eight thousand, four hundred one".