249892893 has 12 divisors (see below), whose sum is σ = 361162048. Its totient is φ = 166500360.

The previous prime is 249892873. The next prime is 249892897. The reversal of 249892893 is 398298942.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-249892893 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 (249892897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11196 + ... + 25002.

Almost surely, 2^249892893 is an apocalyptic number.

It is an amenable number.

249892893 is a deficient number, since it is larger than the sum of its proper divisors (111269155).

249892893 is a wasteful number, since it uses less digits than its factorization.

249892893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15824 (or 15821 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 249892893 is about 15808.0009172571. Note that the first 3 decimals coincide. The cubic root of 249892893 is about 629.8705478541.

The spelling of 249892893 in words is "two hundred forty-nine million, eight hundred ninety-two thousand, eight hundred ninety-three".