49806731 has 4 divisors (see below), whose sum is σ = 53638032. Its totient is φ = 45975432.

The previous prime is 49806721. The next prime is 49806737. The reversal of 49806731 is 13760894.

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

It is a cyclic number.

It is not a de Polignac number, because 49806731 - 2⁶ = 49806667 is a prime.

It is a super-2 number, since 2×49806731² = 4961420905812722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49806737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1915631 + ... + 1915656.

It is an arithmetic number, because the mean of its divisors is an integer number (13409508).

Almost surely, 2^49806731 is an apocalyptic number.

49806731 is a deficient number, since it is larger than the sum of its proper divisors (3831301).

49806731 is a wasteful number, since it uses less digits than its factorization.

49806731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3831300.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 49806731 is about 7057.3883979841. The cubic root of 49806731 is about 367.9278642280.

It can be divided in two parts, 4980 and 6731, that added together give a palindrome (11711).

The spelling of 49806731 in words is "forty-nine million, eight hundred six thousand, seven hundred thirty-one".