49787091 has 12 divisors (see below), whose sum is σ = 73134360. Its totient is φ = 32628480.

The previous prime is 49787081. The next prime is 49787131. The reversal of 49787091 is 19078794.

49787091 is a `hidden beast` number, since 497 + 8 + 70 + 91 = 666.

It is not a de Polignac number, because 49787091 - 2⁶ = 49787027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49787081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46350 + ... + 47411.

It is an arithmetic number, because the mean of its divisors is an integer number (6094530).

Almost surely, 2^49787091 is an apocalyptic number.

49787091 is a deficient number, since it is larger than the sum of its proper divisors (23347269).

49787091 is a wasteful number, since it uses less digits than its factorization.

49787091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93826 (or 93823 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The square root of 49787091 is about 7055.9968112238. The cubic root of 49787091 is about 367.8794969148.

Adding to 49787091 its sum of digits (45), we get a 4-th power (49787136 = 84⁴).

The spelling of 49787091 in words is "forty-nine million, seven hundred eighty-seven thousand, ninety-one".