248996209 has 24 divisors (see below), whose sum is σ = 314529984. Its totient is φ = 191496000.

The previous prime is 248996203. The next prime is 248996213. The reversal of 248996209 is 902699842.

It is a happy number.

It is not a de Polignac number, because 248996209 - 2⁷ = 248996081 is a prime.

It is a super-2 number, since 2×248996209² = 123998224192743362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248996203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 785319 + ... + 785635.

It is an arithmetic number, because the mean of its divisors is an integer number (13105416).

Almost surely, 2^248996209 is an apocalyptic number.

It is an amenable number.

248996209 is a deficient number, since it is larger than the sum of its proper divisors (65533775).

248996209 is a wasteful number, since it uses less digits than its factorization.

248996209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537 (or 436 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 49.

The square root of 248996209 is about 15779.6137151706. The cubic root of 248996209 is about 629.1162623792.

The spelling of 248996209 in words is "two hundred forty-eight million, nine hundred ninety-six thousand, two hundred nine".