206723023 has 4 divisors (see below), whose sum is σ = 222624808. Its totient is φ = 190821240.

The previous prime is 206723017. The next prime is 206723029. The reversal of 206723023 is 320327602.

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

It is an interprime number because it is at equal distance from previous prime (206723017) and next prime (206723029).

It is a cyclic number.

It is not a de Polignac number, because 206723023 - 2¹³ = 206714831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206723029) 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, 7950873 + ... + 7950898.

It is an arithmetic number, because the mean of its divisors is an integer number (55656202).

Almost surely, 2^206723023 is an apocalyptic number.

206723023 is a deficient number, since it is larger than the sum of its proper divisors (15901785).

206723023 is a wasteful number, since it uses less digits than its factorization.

206723023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15901784.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 206723023 is about 14377.8657317420. The cubic root of 206723023 is about 591.2842112427.

The spelling of 206723023 in words is "two hundred six million, seven hundred twenty-three thousand, twenty-three".