2457993 has 8 divisors (see below), whose sum is σ = 3286656. Its totient is φ = 1634000.

The previous prime is 2457971. The next prime is 2457997. The reversal of 2457993 is 3997542.

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

It is a cyclic number.

It is not a de Polignac number, because 2457993 - 2⁸ = 2457737 is a prime.

It is a d-powerful number, because it can be written as 2¹⁵ + 4³ + 5 + 7⁷ + 9³ + 9⁴ + 3¹³ .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2457997) 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, 343 + ... + 2243.

It is an arithmetic number, because the mean of its divisors is an integer number (410832).

2^2457993 is an apocalyptic number.

It is an amenable number.

2457993 is a deficient number, since it is larger than the sum of its proper divisors (828663).

2457993 is a wasteful number, since it uses less digits than its factorization.

2457993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2335.

The product of its digits is 68040, while the sum is 39.

The square root of 2457993 is about 1567.7987753535. The cubic root of 2457993 is about 134.9564194034.

The spelling of 2457993 in words is "two million, four hundred fifty-seven thousand, nine hundred ninety-three".