1722772 has 12 divisors (see below), whose sum is σ = 3034080. Its totient is φ = 855896.

The previous prime is 1722751. The next prime is 1722793. The reversal of 1722772 is 2772271.

It is an interprime number because it is at equal distance from previous prime (1722751) and next prime (1722793).

It is a self number, because there is not a number n which added to its sum of digits gives 1722772.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 622 + ... + 1957.

It is an arithmetic number, because the mean of its divisors is an integer number (252840).

2^1722772 is an apocalyptic number.

It is an amenable number.

1722772 is a deficient number, since it is larger than the sum of its proper divisors (1311308).

1722772 is a wasteful number, since it uses less digits than its factorization.

1722772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2750 (or 2748 counting only the distinct ones).

The product of its digits is 2744, while the sum is 28.

The square root of 1722772 is about 1312.5440944974. The cubic root of 1722772 is about 119.8788592302.

The spelling of 1722772 in words is "one million, seven hundred twenty-two thousand, seven hundred seventy-two".