2658206 has 4 divisors (see below), whose sum is σ = 3987312. Its totient is φ = 1329102.

The previous prime is 2658203. The next prime is 2658209. The reversal of 2658206 is 6028562.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6028562 = 2 ⋅3014281.

It is an interprime number because it is at equal distance from previous prime (2658203) and next prime (2658209).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2658203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664550 + ... + 664553.

It is an arithmetic number, because the mean of its divisors is an integer number (996828).

2^2658206 is an apocalyptic number.

2658206 is a deficient number, since it is larger than the sum of its proper divisors (1329106).

2658206 is a wasteful number, since it uses less digits than its factorization.

2658206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1329105.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 2658206 is about 1630.4005642786. The cubic root of 2658206 is about 138.5254420281.

The spelling of 2658206 in words is "two million, six hundred fifty-eight thousand, two hundred six".