89606231649 has 81 divisors (see below), whose sum is σ = 146115803379. Its totient is φ = 52875947520.

The previous prime is 89606231641. The next prime is 89606231731. The reversal of 89606231649 is 94613260698.

The square root of 89606231649 is 299343.

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

89606231649 is a `hidden beast` number, since 8 + 9 + 6 + 0 + 623 + 1 + 6 + 4 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 21710549025 + 67895682624 = 147345^2 + 260568^2 .

It is not a de Polignac number, because 89606231649 - 2³ = 89606231641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 89606231595 and 89606231604.

It is not an unprimeable number, because it can be changed into a prime (89606231641) 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 80 ways as a sum of consecutive naturals, for example, 464280897 + ... + 464281089.

Almost surely, 2^89606231649 is an apocalyptic number.

89606231649 is the 299343-rd square number.

89606231649 is the 149672-nd centered octagonal number.

It is an amenable number.

89606231649 is a deficient number, since it is larger than the sum of its proper divisors (56509571730).

89606231649 is a wasteful number, since it uses less digits than its factorization.

89606231649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508 (or 254 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 54.

The spelling of 89606231649 in words is "eighty-nine billion, six hundred six million, two hundred thirty-one thousand, six hundred forty-nine".