722527 has 4 divisors (see below), whose sum is σ = 778120. Its totient is φ = 666936.

The previous prime is 722521. The next prime is 722537. The reversal of 722527 is 725227.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 725227 = 191 ⋅3797.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-722527 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 7⁴ + 2⁶ + 5⁷ + 2¹⁸ + 2¹⁸ + 7⁶ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27777 + ... + 27802.

It is an arithmetic number, because the mean of its divisors is an integer number (194530).

2⁷²²⁵²⁷ is an apocalyptic number.

722527 is a deficient number, since it is larger than the sum of its proper divisors (55593).

722527 is a wasteful number, since it uses less digits than its factorization.

722527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55592.

The product of its digits is 1960, while the sum is 25.

The square root of 722527 is about 850.0158822046. The cubic root of 722527 is about 89.7328290695.

The spelling of 722527 in words is "seven hundred twenty-two thousand, five hundred twenty-seven".