206672403 has 8 divisors (see below), whose sum is σ = 314929408. Its totient is φ = 118098504.

The previous prime is 206672399. The next prime is 206672413. The reversal of 206672403 is 304276602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 206672403 - 2² = 206672399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206672413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4920751 + ... + 4920792.

It is an arithmetic number, because the mean of its divisors is an integer number (39366176).

Almost surely, 2^206672403 is an apocalyptic number.

206672403 is a deficient number, since it is larger than the sum of its proper divisors (108257005).

206672403 is an equidigital number, since it uses as much as digits as its factorization.

206672403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9841553.

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 206672403 is about 14376.1052792472. The cubic root of 206672403 is about 591.2359449688.

The spelling of 206672403 in words is "two hundred six million, six hundred seventy-two thousand, four hundred three".