722473 has 4 divisors (see below), whose sum is σ = 724228. Its totient is φ = 720720.

The previous prime is 722467. The next prime is 722479. The reversal of 722473 is 374227.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (722467) and next prime (722479).

It can be written as a sum of positive squares in 2 ways, for example, as 660969 + 61504 = 813^2 + 248^2 .

It is a cyclic number.

It is not a de Polignac number, because 722473 - 2⁹ = 721961 is a prime.

It is a d-powerful number, because it can be written as 7 + 2⁷ + 4⁶ + 2¹⁹ + 7⁵ + 3¹¹ .

It is a Duffinian number.

722473 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115 + ... + 1207.

It is an arithmetic number, because the mean of its divisors is an integer number (181057).

2⁷²²⁴⁷³ is an apocalyptic number.

It is an amenable number.

722473 is a deficient number, since it is larger than the sum of its proper divisors (1755).

722473 is a wasteful number, since it uses less digits than its factorization.

722473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1754.

The product of its digits is 2352, while the sum is 25.

The square root of 722473 is about 849.9841174987. The cubic root of 722473 is about 89.7305935389.

The spelling of 722473 in words is "seven hundred twenty-two thousand, four hundred seventy-three", and thus it is an iban number.