49287189 has 24 divisors (see below), whose sum is σ = 76826880. Its totient is φ = 28023744.

The previous prime is 49287169. The next prime is 49287209. The reversal of 49287189 is 98178294.

It is an interprime number because it is at equal distance from previous prime (49287169) and next prime (49287209).

It is not a de Polignac number, because 49287189 - 2⁵ = 49287157 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49287149) 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, 33532 + ... + 34970.

It is an arithmetic number, because the mean of its divisors is an integer number (3201120).

Almost surely, 2^49287189 is an apocalyptic number.

49287189 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

49287189 is a deficient number, since it is larger than the sum of its proper divisors (27539691).

49287189 is a wasteful number, since it uses less digits than its factorization.

49287189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1689 (or 1682 counting only the distinct ones).

The product of its digits is 290304, while the sum is 48.

The square root of 49287189 is about 7020.4835303560. The cubic root of 49287189 is about 366.6440852025.

The spelling of 49287189 in words is "forty-nine million, two hundred eighty-seven thousand, one hundred eighty-nine".