98623121 has 4 divisors (see below), whose sum is σ = 101804544. Its totient is φ = 95441700.

The previous prime is 98623117. The next prime is 98623139. The reversal of 98623121 is 12132689.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 98623121 - 2² = 98623117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (98623181) 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, 1590665 + ... + 1590726.

It is an arithmetic number, because the mean of its divisors is an integer number (25451136).

Almost surely, 2^98623121 is an apocalyptic number.

It is an amenable number.

98623121 is a deficient number, since it is larger than the sum of its proper divisors (3181423).

98623121 is a wasteful number, since it uses less digits than its factorization.

98623121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3181422.

The product of its digits is 5184, while the sum is 32.

The square root of 98623121 is about 9930.9174299256. The cubic root of 98623121 is about 462.0187285874.

The spelling of 98623121 in words is "ninety-eight million, six hundred twenty-three thousand, one hundred twenty-one".