49769831 has 4 divisors (see below), whose sum is σ = 49784712. Its totient is φ = 49754952.

The previous prime is 49769821. The next prime is 49769879. The reversal of 49769831 is 13896794.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 13896794 = 2 ⋅6948397.

It is a cyclic number.

It is not a de Polignac number, because 49769831 - 2⁶ = 49769767 is a prime.

It is a super-2 number, since 2×49769831² = 4954072155537122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49769801) 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, 176 + ... + 9978.

It is an arithmetic number, because the mean of its divisors is an integer number (12446178).

Almost surely, 2^49769831 is an apocalyptic number.

49769831 is a deficient number, since it is larger than the sum of its proper divisors (14881).

49769831 is an equidigital number, since it uses as much as digits as its factorization.

49769831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14880.

The product of its digits is 326592, while the sum is 47.

The square root of 49769831 is about 7054.7736320877. The cubic root of 49769831 is about 367.8369803114.

The spelling of 49769831 in words is "forty-nine million, seven hundred sixty-nine thousand, eight hundred thirty-one".