21883007 has 2 divisors, whose sum is σ = 21883008. Its totient is φ = 21883006.

The previous prime is 21882997. The next prime is 21883013. The reversal of 21883007 is 70038812.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21883007 - 2¹⁰ = 21881983 is a prime.

It is a Chen prime.

It is equal to p_1382294 and since 21883007 and 1382294 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21883067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10941503 + 10941504.

It is an arithmetic number, because the mean of its divisors is an integer number (10941504).

Almost surely, 2^21883007 is an apocalyptic number.

21883007 is a deficient number, since it is larger than the sum of its proper divisors (1).

21883007 is an equidigital number, since it uses as much as digits as its factorization.

21883007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 21883007 is about 4677.9276394575. The cubic root of 21883007 is about 279.7063545668.

The spelling of 21883007 in words is "twenty-one million, eight hundred eighty-three thousand, seven".