49831791 has 8 divisors (see below), whose sum is σ = 66655920. Its totient is φ = 33114432.

The previous prime is 49831781. The next prime is 49831799. The reversal of 49831791 is 19713894.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 49831791 - 2⁵ = 49831759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49831799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25596 + ... + 27473.

It is an arithmetic number, because the mean of its divisors is an integer number (8331990).

Almost surely, 2^49831791 is an apocalyptic number.

49831791 is a deficient number, since it is larger than the sum of its proper divisors (16824129).

49831791 is a wasteful number, since it uses less digits than its factorization.

49831791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53385.

The product of its digits is 54432, while the sum is 42.

The square root of 49831791 is about 7059.1636190132. The cubic root of 49831791 is about 367.9895608846.

The spelling of 49831791 in words is "forty-nine million, eight hundred thirty-one thousand, seven hundred ninety-one".