21876002 has 8 divisors (see below), whose sum is σ = 32893212. Its totient is φ = 10911600.

The previous prime is 21875999. The next prime is 21876017. The reversal of 21876002 is 20067812.

It can be written as a sum of positive squares in 2 ways, for example, as 19439281 + 2436721 = 4409^2 + 1561^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12149 + ... + 13832.

Almost surely, 2^21876002 is an apocalyptic number.

21876002 is a deficient number, since it is larger than the sum of its proper divisors (11017210).

21876002 is a wasteful number, since it uses less digits than its factorization.

21876002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26404.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 21876002 is about 4677.1788505466. The cubic root of 21876002 is about 279.6765056507.

The spelling of 21876002 in words is "twenty-one million, eight hundred seventy-six thousand, two".