1722526 has 16 divisors (see below), whose sum is σ = 2815344. Its totient is φ = 785664.

The previous prime is 1722481. The next prime is 1722529. The reversal of 1722526 is 6252271.

It is a self number, because there is not a number n which added to its sum of digits gives 1722526.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1722529) 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, 2181 + ... + 2863.

It is an arithmetic number, because the mean of its divisors is an integer number (175959).

2^1722526 is an apocalyptic number.

1722526 is a deficient number, since it is larger than the sum of its proper divisors (1092818).

1722526 is a wasteful number, since it uses less digits than its factorization.

1722526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795.

The product of its digits is 1680, while the sum is 25.

The square root of 1722526 is about 1312.4503800144. The cubic root of 1722526 is about 119.8731529996.

Adding to 1722526 its reverse (6252271), we get a palindrome (7974797).

The spelling of 1722526 in words is "one million, seven hundred twenty-two thousand, five hundred twenty-six".