49007791 has 6 divisors (see below), whose sum is σ = 57009120. Its totient is φ = 42006636.

The previous prime is 49007789. The next prime is 49007801. The reversal of 49007791 is 19770094.

It is not a de Polignac number, because 49007791 - 2¹ = 49007789 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49007791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49007731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 500031 + ... + 500128.

It is an arithmetic number, because the mean of its divisors is an integer number (9501520).

Almost surely, 2^49007791 is an apocalyptic number.

49007791 is a deficient number, since it is larger than the sum of its proper divisors (8001329).

49007791 is a wasteful number, since it uses less digits than its factorization.

49007791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000173 (or 1000166 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 37.

The square root of 49007791 is about 7000.5564778809. The cubic root of 49007791 is about 365.9499642948.

The spelling of 49007791 in words is "forty-nine million, seven thousand, seven hundred ninety-one".