1031722 has 4 divisors (see below), whose sum is σ = 1547586. Its totient is φ = 515860.

The previous prime is 1031717. The next prime is 1031729. The reversal of 1031722 is 2271301.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 772641 + 259081 = 879^2 + 509^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1031696 and 1031705.

It is not an unprimeable number, because it can be changed into a prime (1031729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257929 + ... + 257932.

2^1031722 is an apocalyptic number.

1031722 is a deficient number, since it is larger than the sum of its proper divisors (515864).

1031722 is an equidigital number, since it uses as much as digits as its factorization.

1031722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515863.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 1031722 is about 1015.7371707287. The cubic root of 1031722 is about 101.0464120255.

The spelling of 1031722 in words is "one million, thirty-one thousand, seven hundred twenty-two".