21276802 has 8 divisors (see below), whose sum is σ = 32106816. Its totient is φ = 10574532.

The previous prime is 21276793. The next prime is 21276803. The reversal of 21276802 is 20867212.

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

It is not an unprimeable number, because it can be changed into a prime (21276803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31518 + ... + 32185.

It is an arithmetic number, because the mean of its divisors is an integer number (4013352).

Almost surely, 2^21276802 is an apocalyptic number.

21276802 is a deficient number, since it is larger than the sum of its proper divisors (10830014).

21276802 is a wasteful number, since it uses less digits than its factorization.

21276802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63872.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 21276802 is about 4612.6783976341. The cubic root of 21276802 is about 277.0993140474.

It can be divided in two parts, 2 and 1276802, that multiplied together give a square (2553604 = 1598²).

The spelling of 21276802 in words is "twenty-one million, two hundred seventy-six thousand, eight hundred two".