722671000 has 64 divisors (see below), whose sum is σ = 1702190880. Its totient is φ = 287164800.

The previous prime is 722670979. The next prime is 722671031. The reversal of 722671000 is 176227.

722671000 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 154699 + ... + 159301.

Almost surely, 2^722671000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 722671000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (851095440).

722671000 is an abundant number, since it is smaller than the sum of its proper divisors (979519880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

722671000 is a wasteful number, since it uses less digits than its factorization.

722671000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4781 (or 4767 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 722671000 is about 26882.5408025358. The cubic root of 722671000 is about 897.3878993970.

The spelling of 722671000 in words is "seven hundred twenty-two million, six hundred seventy-one thousand".