22997077 has 2 divisors, whose sum is σ = 22997078. Its totient is φ = 22997076.

The previous prime is 22997057. The next prime is 22997111. The reversal of 22997077 is 77079922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22982436 + 14641 = 4794^2 + 121^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22997077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22997047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11498538 + 11498539.

It is an arithmetic number, because the mean of its divisors is an integer number (11498539).

Almost surely, 2^22997077 is an apocalyptic number.

It is an amenable number.

22997077 is a deficient number, since it is larger than the sum of its proper divisors (1).

22997077 is an equidigital number, since it uses as much as digits as its factorization.

22997077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 111132, while the sum is 43.

The square root of 22997077 is about 4795.5267698137. The cubic root of 22997077 is about 284.3746501948.

The spelling of 22997077 in words is "twenty-two million, nine hundred ninety-seven thousand, seventy-seven".