21794876 has 6 divisors (see below), whose sum is σ = 38141040. Its totient is φ = 10897436.

The previous prime is 21794837. The next prime is 21794879. The reversal of 21794876 is 67849712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21794879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2724356 + ... + 2724363.

It is an arithmetic number, because the mean of its divisors is an integer number (6356840).

Almost surely, 2^21794876 is an apocalyptic number.

It is an amenable number.

21794876 is a deficient number, since it is larger than the sum of its proper divisors (16346164).

21794876 is a wasteful number, since it uses less digits than its factorization.

21794876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5448723 (or 5448721 counting only the distinct ones).

The product of its digits is 169344, while the sum is 44.

The square root of 21794876 is about 4668.4982596120. The cubic root of 21794876 is about 279.3303555458.

The spelling of 21794876 in words is "twenty-one million, seven hundred ninety-four thousand, eight hundred seventy-six".