98921903 has 4 divisors (see below), whose sum is σ = 100788408. Its totient is φ = 97055400.

The previous prime is 98921863. The next prime is 98921909. The reversal of 98921903 is 30912989.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30912989 = 23 ⋅1344043.

It is a cyclic number.

It is not a de Polignac number, because 98921903 - 2⁶ = 98921839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98921909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 933173 + ... + 933278.

It is an arithmetic number, because the mean of its divisors is an integer number (25197102).

Almost surely, 2^98921903 is an apocalyptic number.

98921903 is a deficient number, since it is larger than the sum of its proper divisors (1866505).

98921903 is a wasteful number, since it uses less digits than its factorization.

98921903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1866504.

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 98921903 is about 9945.9490748747. The cubic root of 98921903 is about 462.4848252143.

The spelling of 98921903 in words is "ninety-eight million, nine hundred twenty-one thousand, nine hundred three".