10002722 has 4 divisors (see below), whose sum is σ = 15004086. Its totient is φ = 5001360.

The previous prime is 10002667. The next prime is 10002731. The reversal of 10002722 is 22720001.

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., 8231161 + 1771561 = 2869^2 + 1331^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10002697 and 10002706.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2500679 + ... + 2500682.

Almost surely, 2^10002722 is an apocalyptic number.

10002722 is a deficient number, since it is larger than the sum of its proper divisors (5001364).

10002722 is an equidigital number, since it uses as much as digits as its factorization.

10002722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5001363.

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 10002722 is about 3162.7080168741. The cubic root of 10002722 is about 215.4630151339.

Adding to 10002722 its reverse (22720001), we get a palindrome (32722723).

The spelling of 10002722 in words is "ten million, two thousand, seven hundred twenty-two".