49715689 has 4 divisors (see below), whose sum is σ = 49750740. Its totient is φ = 49680640.

The previous prime is 49715681. The next prime is 49715717. The reversal of 49715689 is 98651794.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10778089 + 38937600 = 3283^2 + 6240^2 .

It is a cyclic number.

It is not a de Polignac number, because 49715689 - 2³ = 49715681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49715681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15304 + ... + 18265.

It is an arithmetic number, because the mean of its divisors is an integer number (12437685).

Almost surely, 2^49715689 is an apocalyptic number.

It is an amenable number.

49715689 is a deficient number, since it is larger than the sum of its proper divisors (35051).

49715689 is a wasteful number, since it uses less digits than its factorization.

49715689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35050.

The product of its digits is 544320, while the sum is 49.

The square root of 49715689 is about 7050.9353280256. The cubic root of 49715689 is about 367.7035483681.

It can be divided in two parts, 4 and 9715689, that multiplied together give a square (38862756 = 6234²).

The spelling of 49715689 in words is "forty-nine million, seven hundred fifteen thousand, six hundred eighty-nine".