98990093 has 2 divisors, whose sum is σ = 98990094. Its totient is φ = 98990092.

The previous prime is 98990077. The next prime is 98990153. The reversal of 98990093 is 39009989.

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., 98346889 + 643204 = 9917^2 + 802^2 .

It is an emirp because it is prime and its reverse (39009989) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 98990093 - 2⁴ = 98990077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98990293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49495046 + 49495047.

It is an arithmetic number, because the mean of its divisors is an integer number (49495047).

Almost surely, 2^98990093 is an apocalyptic number.

It is an amenable number.

98990093 is a deficient number, since it is larger than the sum of its proper divisors (1).

98990093 is an equidigital number, since it uses as much as digits as its factorization.

98990093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 157464, while the sum is 47.

The square root of 98990093 is about 9949.3765131289. The cubic root of 98990093 is about 462.5910692836.

The spelling of 98990093 in words is "ninety-eight million, nine hundred ninety thousand, ninety-three".