22990977 has 6 divisors (see below), whose sum is σ = 33209202. Its totient is φ = 15327312.

The previous prime is 22990967. The next prime is 22990991. The reversal of 22990977 is 77909922.

It can be written as a sum of positive squares in only one way, i.e., 14470416 + 8520561 = 3804^2 + 2919^2 .

It is a de Polignac number, because none of the positive numbers 2^k-22990977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22990927) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 1277268 + ... + 1277285.

It is an arithmetic number, because the mean of its divisors is an integer number (5534867).

Almost surely, 2^22990977 is an apocalyptic number.

It is an amenable number.

22990977 is a deficient number, since it is larger than the sum of its proper divisors (10218225).

22990977 is a wasteful number, since it uses less digits than its factorization.

22990977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2554559 (or 2554556 counting only the distinct ones).

The product of its (nonzero) digits is 142884, while the sum is 45.

The square root of 22990977 is about 4794.8907182542. The cubic root of 22990977 is about 284.3495044083.

The spelling of 22990977 in words is "twenty-two million, nine hundred ninety thousand, nine hundred seventy-seven".