98664437 has 2 divisors, whose sum is σ = 98664438. Its totient is φ = 98664436.

The previous prime is 98664431. The next prime is 98664469. The reversal of 98664437 is 73446689.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97495876 + 1168561 = 9874^2 + 1081^2 .

It is an emirp because it is prime and its reverse (73446689) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98664437 - 2²² = 94470133 is a prime.

It is a super-2 number, since 2×98664437² = 19469342257053938, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 98664391 and 98664400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98664431) 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, 49332218 + 49332219.

It is an arithmetic number, because the mean of its divisors is an integer number (49332219).

Almost surely, 2^98664437 is an apocalyptic number.

It is an amenable number.

98664437 is a deficient number, since it is larger than the sum of its proper divisors (1).

98664437 is an equidigital number, since it uses as much as digits as its factorization.

98664437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 47.

The square root of 98664437 is about 9932.9973824622. The cubic root of 98664437 is about 462.0832371280.

The spelling of 98664437 in words is "ninety-eight million, six hundred sixty-four thousand, four hundred thirty-seven".