49319289 has 6 divisors (see below), whose sum is σ = 71238986. Its totient is φ = 32879520.

The previous prime is 49319287. The next prime is 49319299. The reversal of 49319289 is 98291394.

It can be written as a sum of positive squares in only one way, i.e., 42029289 + 7290000 = 6483^2 + 2700^2 .

It is not a de Polignac number, because 49319289 - 2¹ = 49319287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49319287) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2739952 + ... + 2739969.

Almost surely, 2^49319289 is an apocalyptic number.

It is an amenable number.

49319289 is a deficient number, since it is larger than the sum of its proper divisors (21919697).

49319289 is a wasteful number, since it uses less digits than its factorization.

49319289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5479927 (or 5479924 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 49319289 is about 7022.7693255581. The cubic root of 49319289 is about 366.7236645094.

The spelling of 49319289 in words is "forty-nine million, three hundred nineteen thousand, two hundred eighty-nine".