722554 has 24 divisors (see below), whose sum is σ = 1290708. Its totient is φ = 302400.

The previous prime is 722539. The next prime is 722563. The reversal of 722554 is 455227.

722554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 648025 + 74529 = 805^2 + 273^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7104 + ... + 7204.

2⁷²²⁵⁵⁴ is an apocalyptic number.

722554 is a deficient number, since it is larger than the sum of its proper divisors (568154).

722554 is a wasteful number, since it uses less digits than its factorization.

722554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190 (or 183 counting only the distinct ones).

The product of its digits is 2800, while the sum is 25.

The square root of 722554 is about 850.0317641124. The cubic root of 722554 is about 89.7339467930.

The spelling of 722554 in words is "seven hundred twenty-two thousand, five hundred fifty-four".