2664993 has 8 divisors (see below), whose sum is σ = 3561408. Its totient is φ = 1772624.

The previous prime is 2664989. The next prime is 2665001. The reversal of 2664993 is 3994662.

It is a happy number.

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 2664993 - 2² = 2664989 is a prime.

It is a d-powerful number, because it can be written as 2²¹ + 6² + 6³ + 4⁷ + 9² + 9⁶ + 3⁹ .

It is not an unprimeable number, because it can be changed into a prime (2664923) 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, 1255 + ... + 2627.

It is an arithmetic number, because the mean of its divisors is an integer number (445176).

2^2664993 is an apocalyptic number.

It is an amenable number.

2664993 is a deficient number, since it is larger than the sum of its proper divisors (896415).

2664993 is a wasteful number, since it uses less digits than its factorization.

2664993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2023.

The product of its digits is 69984, while the sum is 39.

The square root of 2664993 is about 1632.4806277564. The cubic root of 2664993 is about 138.6432374073.

The spelling of 2664993 in words is "two million, six hundred sixty-four thousand, nine hundred ninety-three".