99997241 has 4 divisors (see below), whose sum is σ = 100968192. Its totient is φ = 99026292.

The previous prime is 99997189. The next prime is 99997243. The reversal of 99997241 is 14279999.

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 a de Polignac number, because none of the positive numbers 2^k-99997241 is a prime.

It is a super-2 number, since 2×99997241² = 19998896415224162, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 99997241.

It is not an unprimeable number, because it can be changed into a prime (99997243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 485321 + ... + 485526.

It is an arithmetic number, because the mean of its divisors is an integer number (25242048).

Almost surely, 2^99997241 is an apocalyptic number.

It is an amenable number.

99997241 is a deficient number, since it is larger than the sum of its proper divisors (970951).

99997241 is a wasteful number, since it uses less digits than its factorization.

99997241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970950.

The product of its digits is 367416, while the sum is 50.

The square root of 99997241 is about 9999.8620490485. The cubic root of 99997241 is about 464.1546146075.

The spelling of 99997241 in words is "ninety-nine million, nine hundred ninety-seven thousand, two hundred forty-one".