2669863 has 18 divisors (see below), whose sum is σ = 3278184. Its totient is φ = 2167704.

The previous prime is 2669857. The next prime is 2669873. The reversal of 2669863 is 3689662.

It is not a de Polignac number, because 2669863 - 2⁹ = 2669351 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2669803) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 25870 + ... + 25972.

2^2669863 is an apocalyptic number.

2669863 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2669863 is a deficient number, since it is larger than the sum of its proper divisors (608321).

2669863 is a wasteful number, since it uses less digits than its factorization.

2669863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 133 counting only the distinct ones).

The product of its digits is 93312, while the sum is 40.

The square root of 2669863 is about 1633.9715419798. The cubic root of 2669863 is about 138.7276380919.

The spelling of 2669863 in words is "two million, six hundred sixty-nine thousand, eight hundred sixty-three".