49289287 has 16 divisors (see below), whose sum is σ = 54400000. Its totient is φ = 44478720.

The previous prime is 49289267. The next prime is 49289293. The reversal of 49289287 is 78298294.

It is a cyclic number.

It is not a de Polignac number, because 49289287 - 2¹⁹ = 48764999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49289287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49289237) 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 15 ways as a sum of consecutive naturals, for example, 38839 + ... + 40087.

It is an arithmetic number, because the mean of its divisors is an integer number (3400000).

Almost surely, 2^49289287 is an apocalyptic number.

49289287 is a deficient number, since it is larger than the sum of its proper divisors (5110713).

49289287 is a wasteful number, since it uses less digits than its factorization.

49289287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366.

The product of its digits is 580608, while the sum is 49.

The square root of 49289287 is about 7020.6329486735. The cubic root of 49289287 is about 366.6492874224.

The spelling of 49289287 in words is "forty-nine million, two hundred eighty-nine thousand, two hundred eighty-seven".