10721002 has 8 divisors (see below), whose sum is σ = 16097796. Its totient is φ = 5355072.

The previous prime is 10720991. The next prime is 10721003. The reversal of 10721002 is 20012701.

It can be written as a sum of positive squares in 2 ways, for example, as 8346321 + 2374681 = 2889^2 + 1541^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×10721002² = 229879767768008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10721003) 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 in 3 ways as a sum of consecutive naturals, for example, 528 + ... + 4660.

Almost surely, 2^10721002 is an apocalyptic number.

10721002 is a deficient number, since it is larger than the sum of its proper divisors (5376794).

10721002 is a wasteful number, since it uses less digits than its factorization.

10721002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5432.

The product of its (nonzero) digits is 28, while the sum is 13.

The square root of 10721002 is about 3274.2941224026. The cubic root of 10721002 is about 220.5016239684.

Adding to 10721002 its reverse (20012701), we get a palindrome (30733703).

The spelling of 10721002 in words is "ten million, seven hundred twenty-one thousand, two".