49697811 has 12 divisors (see below), whose sum is σ = 71993688. Its totient is φ = 33035904.

The previous prime is 49697803. The next prime is 49697821. The reversal of 49697811 is 11879694.

It is a happy number.

49697811 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 49697811 - 2³ = 49697803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49697821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4645 + ... + 10998.

It is an arithmetic number, because the mean of its divisors is an integer number (5999474).

Almost surely, 2^49697811 is an apocalyptic number.

49697811 is a deficient number, since it is larger than the sum of its proper divisors (22295877).

49697811 is a wasteful number, since it uses less digits than its factorization.

49697811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16002 (or 15999 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 49697811 is about 7049.6674389648. The cubic root of 49697811 is about 367.6594670977.

The spelling of 49697811 in words is "forty-nine million, six hundred ninety-seven thousand, eight hundred eleven".