2642999 has 4 divisors (see below), whose sum is σ = 2757936. Its totient is φ = 2528064.

The previous prime is 2642993. The next prime is 2643013. The reversal of 2642999 is 9992462.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2642999 is a prime.

It is a d-powerful number, because it can be written as 2¹⁹ + 6² + 4³ + 2¹⁹ + 9⁶ + 9⁶ + 9⁶ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2642993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57434 + ... + 57479.

It is an arithmetic number, because the mean of its divisors is an integer number (689484).

2^2642999 is an apocalyptic number.

2642999 is a deficient number, since it is larger than the sum of its proper divisors (114937).

2642999 is a wasteful number, since it uses less digits than its factorization.

2642999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114936.

The product of its digits is 69984, while the sum is 41.

The square root of 2642999 is about 1625.7302974356. The cubic root of 2642999 is about 138.2607790363.

The spelling of 2642999 in words is "two million, six hundred forty-two thousand, nine hundred ninety-nine".