89902226569 has 9 divisors (see below), whose sum is σ = 90239603853. Its totient is φ = 89566109292.

The previous prime is 89902226567. The next prime is 89902226581. The reversal of 89902226569 is 96562220998.

The square root of 89902226569 is 299837.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 89902226569 - 2¹ = 89902226567 is a prime.

It is a super-2 number, since 2×89902226569² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89902226567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 131628102 + ... + 131628784.

Almost surely, 2^89902226569 is an apocalyptic number.

89902226569 is the 299837-th square number.

89902226569 is the 149919-th centered octagonal number.

It is an amenable number.

89902226569 is a deficient number, since it is larger than the sum of its proper divisors (337377284).

89902226569 is an frugal number, since it uses more digits than its factorization.

89902226569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2244 (or 1122 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 58.

The spelling of 89902226569 in words is "eighty-nine billion, nine hundred two million, two hundred twenty-six thousand, five hundred sixty-nine".