2397993 has 8 divisors (see below), whose sum is σ = 3443328. Its totient is φ = 1475664.

The previous prime is 2397991. The next prime is 2398001. The reversal of 2397993 is 3997932.

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

It is not a de Polignac number, because 2397993 - 2¹ = 2397991 is a prime.

2397993 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2397991) 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, 30705 + ... + 30782.

It is an arithmetic number, because the mean of its divisors is an integer number (430416).

2^2397993 is an apocalyptic number.

It is an amenable number.

2397993 is a deficient number, since it is larger than the sum of its proper divisors (1045335).

2397993 is a wasteful number, since it uses less digits than its factorization.

2397993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61503.

The product of its digits is 91854, while the sum is 42.

The square root of 2397993 is about 1548.5454465401. The cubic root of 2397993 is about 133.8492587214.

The spelling of 2397993 in words is "two million, three hundred ninety-seven thousand, nine hundred ninety-three".