21794062 has 4 divisors (see below), whose sum is σ = 32691096. Its totient is φ = 10897030.

The previous prime is 21794039. The next prime is 21794107. The reversal of 21794062 is 26049712.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×21794062² = 949962276919688, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5448514 + ... + 5448517.

It is an arithmetic number, because the mean of its divisors is an integer number (8172774).

Almost surely, 2^21794062 is an apocalyptic number.

21794062 is a deficient number, since it is larger than the sum of its proper divisors (10897034).

21794062 is a wasteful number, since it uses less digits than its factorization.

21794062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10897033.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 21794062 is about 4668.4110787290. The cubic root of 21794062 is about 279.3268780046.

It can be divided in two parts, 2179 and 4062, that added together give a square (6241 = 79²).

The spelling of 21794062 in words is "twenty-one million, seven hundred ninety-four thousand, sixty-two".