902722 has 4 divisors (see below), whose sum is σ = 1354086. Its totient is φ = 451360.

The previous prime is 902719. The next prime is 902723. The reversal of 902722 is 227209.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 227209 = 59 ⋅3851.

It can be written as a sum of positive squares in only one way, i.e., 641601 + 261121 = 801^2 + 511^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 902693 and 902702.

It is not an unprimeable number, because it can be changed into a prime (902723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225679 + ... + 225682.

2⁹⁰²⁷²² is an apocalyptic number.

902722 is a deficient number, since it is larger than the sum of its proper divisors (451364).

902722 is a wasteful number, since it uses less digits than its factorization.

902722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451363.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 902722 is about 950.1168349208. The cubic root of 902722 is about 96.6461761299.

The spelling of 902722 in words is "nine hundred two thousand, seven hundred twenty-two".