10721802 has 64 divisors (see below), whose sum is σ = 26853120. Its totient is φ = 2778624.

The previous prime is 10721773. The next prime is 10721803. The reversal of 10721802 is 20812701.

It is a super-2 number, since 2×10721802² = 229914076254408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (10721803) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39724 + ... + 39992.

It is an arithmetic number, because the mean of its divisors is an integer number (419580).

Almost surely, 2^10721802 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10721802, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13426560).

10721802 is an abundant number, since it is smaller than the sum of its proper divisors (16131318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10721802 is a wasteful number, since it uses less digits than its factorization.

10721802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367.

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 10721802 is about 3274.4162838588. The cubic root of 10721802 is about 220.5071084344.

The spelling of 10721802 in words is "ten million, seven hundred twenty-one thousand, eight hundred two".