98991037 has 2 divisors, whose sum is σ = 98991038. Its totient is φ = 98991036.

The previous prime is 98990999. The next prime is 98991043. The reversal of 98991037 is 73019989.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98922916 + 68121 = 9946^2 + 261^2 .

It is a cyclic number.

It is not a de Polignac number, because 98991037 - 2¹⁵ = 98958269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98991047) 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 as a sum of consecutive naturals, namely, 49495518 + 49495519.

It is an arithmetic number, because the mean of its divisors is an integer number (49495519).

Almost surely, 2^98991037 is an apocalyptic number.

It is an amenable number.

98991037 is a deficient number, since it is larger than the sum of its proper divisors (1).

98991037 is an equidigital number, since it uses as much as digits as its factorization.

98991037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472, while the sum is 46.

The square root of 98991037 is about 9949.4239531744. The cubic root of 98991037 is about 462.5925397492.

The spelling of 98991037 in words is "ninety-eight million, nine hundred ninety-one thousand, thirty-seven".