22820007 has 16 divisors (see below), whose sum is σ = 36604160. Its totient is φ = 12353472.

The previous prime is 22819991. The next prime is 22820023. The reversal of 22820007 is 70002822.

It is an interprime number because it is at equal distance from previous prime (22819991) and next prime (22820023).

It is not a de Polignac number, because 22820007 - 2⁴ = 22819991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22820087) 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 in 15 ways as a sum of consecutive naturals, for example, 28198 + ... + 28995.

It is an arithmetic number, because the mean of its divisors is an integer number (2287760).

Almost surely, 2^22820007 is an apocalyptic number.

22820007 is a deficient number, since it is larger than the sum of its proper divisors (13784153).

22820007 is a wasteful number, since it uses less digits than its factorization.

22820007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57222.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 22820007 is about 4777.0290976715. The cubic root of 22820007 is about 283.6429048515.

Adding to 22820007 its reverse (70002822), we get a palindrome (92822829).

The spelling of 22820007 in words is "twenty-two million, eight hundred twenty thousand, seven".