22077447 has 32 divisors (see below), whose sum is σ = 35954688. Its totient is φ = 11775456.

The previous prime is 22077443. The next prime is 22077457. The reversal of 22077447 is 74477022.

It is not a de Polignac number, because 22077447 - 2² = 22077443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22077443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20238 + ... + 21300.

It is an arithmetic number, because the mean of its divisors is an integer number (1123584).

Almost surely, 2^22077447 is an apocalyptic number.

22077447 is a deficient number, since it is larger than the sum of its proper divisors (13877241).

22077447 is a wasteful number, since it uses less digits than its factorization.

22077447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139.

The product of its (nonzero) digits is 21952, while the sum is 33.

The square root of 22077447 is about 4698.6643846949. The cubic root of 22077447 is about 280.5323503221.

The spelling of 22077447 in words is "twenty-two million, seventy-seven thousand, four hundred forty-seven".