722545089 has 8 divisors (see below), whose sum is σ = 1101021120. Its totient is φ = 412882896.

The previous prime is 722545027. The next prime is 722545099. The reversal of 722545089 is 980545227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 722545089 - 2⁹ = 722544577 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 722545089.

It is not an unprimeable number, because it can be changed into a prime (722545099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17203434 + ... + 17203475.

It is an arithmetic number, because the mean of its divisors is an integer number (137627640).

Almost surely, 2^722545089 is an apocalyptic number.

It is an amenable number.

722545089 is a deficient number, since it is larger than the sum of its proper divisors (378476031).

722545089 is a wasteful number, since it uses less digits than its factorization.

722545089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34406919.

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 722545089 is about 26880.1988273897. The cubic root of 722545089 is about 897.3357790589.

The spelling of 722545089 in words is "seven hundred twenty-two million, five hundred forty-five thousand, eighty-nine".