722477 has 8 divisors (see below), whose sum is σ = 854400. Its totient is φ = 597744.

The previous prime is 722467. The next prime is 722479. The reversal of 722477 is 774227.

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

It is not a de Polignac number, because 722477 - 2¹² = 718381 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 722477.

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 7 ways as a sum of consecutive naturals, for example, 1577 + ... + 1982.

It is an arithmetic number, because the mean of its divisors is an integer number (106800).

2⁷²²⁴⁷⁷ is an apocalyptic number.

It is an amenable number.

722477 is a deficient number, since it is larger than the sum of its proper divisors (131923).

722477 is a wasteful number, since it uses less digits than its factorization.

722477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3595.

The product of its digits is 5488, while the sum is 29.

The square root of 722477 is about 849.9864704806. The cubic root of 722477 is about 89.7307591376.

The spelling of 722477 in words is "seven hundred twenty-two thousand, four hundred seventy-seven", and thus it is an iban number.