24191997 has 16 divisors (see below), whose sum is σ = 35051520. Its totient is φ = 14785200.

The previous prime is 24191983. The next prime is 24192011. The reversal of 24191997 is 79919142.

It is an interprime number because it is at equal distance from previous prime (24191983) and next prime (24192011).

It is not a de Polignac number, because 24191997 - 2¹⁰ = 24190973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24199997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5079 + ... + 8612.

It is an arithmetic number, because the mean of its divisors is an integer number (2190720).

Almost surely, 2^24191997 is an apocalyptic number.

It is an amenable number.

24191997 is a deficient number, since it is larger than the sum of its proper divisors (10859523).

24191997 is a wasteful number, since it uses less digits than its factorization.

24191997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13744.

The product of its digits is 40824, while the sum is 42.

The square root of 24191997 is about 4918.5360626918. The cubic root of 24191997 is about 289.2170597460.

The spelling of 24191997 in words is "twenty-four million, one hundred ninety-one thousand, nine hundred ninety-seven".