98490823 has 2 divisors, whose sum is σ = 98490824. Its totient is φ = 98490822.

The previous prime is 98490817. The next prime is 98490859. The reversal of 98490823 is 32809489.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (32809489) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-98490823 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 98490823.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (98490863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49245411 + 49245412.

It is an arithmetic number, because the mean of its divisors is an integer number (49245412).

Almost surely, 2^98490823 is an apocalyptic number.

98490823 is a deficient number, since it is larger than the sum of its proper divisors (1).

98490823 is an equidigital number, since it uses as much as digits as its factorization.

98490823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 98490823 is about 9924.2542792897. The cubic root of 98490823 is about 461.8120444442.

The spelling of 98490823 in words is "ninety-eight million, four hundred ninety thousand, eight hundred twenty-three".