722869 has 8 divisors (see below), whose sum is σ = 848768. Its totient is φ = 602640.

The previous prime is 722849. The next prime is 722881. The reversal of 722869 is 968227.

722869 = 60² + 61² + ... + 133².

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

It is a cyclic number.

It is not a de Polignac number, because 722869 - 2¹³ = 714677 is a prime.

It is a super-2 number, since 2×722869² = 1045079182322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722819) 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 7 ways as a sum of consecutive naturals, for example, 1137 + ... + 1654.

It is an arithmetic number, because the mean of its divisors is an integer number (106096).

2⁷²²⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

722869 is a deficient number, since it is larger than the sum of its proper divisors (125899).

722869 is a wasteful number, since it uses less digits than its factorization.

722869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2835.

The product of its digits is 12096, while the sum is 34.

The square root of 722869 is about 850.2170311162. The cubic root of 722869 is about 89.7469848435.

The spelling of 722869 in words is "seven hundred twenty-two thousand, eight hundred sixty-nine".