22987037 has 2 divisors, whose sum is σ = 22987038. Its totient is φ = 22987036.

The previous prime is 22986991. The next prime is 22987039. The reversal of 22987037 is 73078922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13039321 + 9947716 = 3611^2 + 3154^2 .

It is a cyclic number.

It is not a de Polignac number, because 22987037 - 2²² = 18792733 is a prime.

Together with 22987039, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22987039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11493518 + 11493519.

It is an arithmetic number, because the mean of its divisors is an integer number (11493519).

Almost surely, 2^22987037 is an apocalyptic number.

It is an amenable number.

22987037 is a deficient number, since it is larger than the sum of its proper divisors (1).

22987037 is an equidigital number, since it uses as much as digits as its factorization.

22987037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 22987037 is about 4794.4798466570. The cubic root of 22987037 is about 284.3332603393. Note that the first 3 decimals are identical.

The spelling of 22987037 in words is "twenty-two million, nine hundred eighty-seven thousand, thirty-seven".