246866993 has 4 divisors (see below), whose sum is σ = 247341348. Its totient is φ = 246392640.

The previous prime is 246866987. The next prime is 246867007. The reversal of 246866993 is 399668642.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 399668642 = 2 ⋅199834321.

It can be written as a sum of positive squares in 2 ways, for example, as 70694464 + 176172529 = 8408^2 + 13273^2 .

It is a cyclic number.

It is not a de Polignac number, because 246866993 - 2¹² = 246862897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (246866933) 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, 236396 + ... + 237437.

It is an arithmetic number, because the mean of its divisors is an integer number (61835337).

Almost surely, 2^246866993 is an apocalyptic number.

It is an amenable number.

246866993 is a deficient number, since it is larger than the sum of its proper divisors (474355).

246866993 is an equidigital number, since it uses as much as digits as its factorization.

246866993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474354.

The product of its digits is 3359232, while the sum is 53.

The square root of 246866993 is about 15712.0015593176. The cubic root of 246866993 is about 627.3178938555.

The spelling of 246866993 in words is "two hundred forty-six million, eight hundred sixty-six thousand, nine hundred ninety-three".