89989992737 has 2 divisors, whose sum is σ = 89989992738. Its totient is φ = 89989992736.

The previous prime is 89989992731. The next prime is 89989992761. The reversal of 89989992737 is 73729998998.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50100316561 + 39889676176 = 223831^2 + 199724^2 .

It is a cyclic number.

It is not a de Polignac number, because 89989992737 - 2¹⁰ = 89989991713 is a prime.

It is not a weakly prime, because it can be changed into another prime (89989992731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44994996368 + 44994996369.

It is an arithmetic number, because the mean of its divisors is an integer number (44994996369).

Almost surely, 2^89989992737 is an apocalyptic number.

It is an amenable number.

89989992737 is a deficient number, since it is larger than the sum of its proper divisors (1).

89989992737 is an equidigital number, since it uses as much as digits as its factorization.

89989992737 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1111065984, while the sum is 80.

The spelling of 89989992737 in words is "eighty-nine billion, nine hundred eighty-nine million, nine hundred ninety-two thousand, seven hundred thirty-seven".