18343797 has 8 divisors (see below), whose sum is σ = 25745760. Its totient is φ = 11585520.

The previous prime is 18343783. The next prime is 18343813. The reversal of 18343797 is 79734381.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18343797 - 2⁶ = 18343733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18323797) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160854 + ... + 160967.

It is an arithmetic number, because the mean of its divisors is an integer number (3218220).

Almost surely, 2^18343797 is an apocalyptic number.

It is an amenable number.

18343797 is a deficient number, since it is larger than the sum of its proper divisors (7401963).

18343797 is a wasteful number, since it uses less digits than its factorization.

18343797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321843.

The product of its digits is 127008, while the sum is 42.

The square root of 18343797 is about 4282.9659116084. The cubic root of 18343797 is about 263.7321520083.

The spelling of 18343797 in words is "eighteen million, three hundred forty-three thousand, seven hundred ninety-seven".