49691371 has 2 divisors, whose sum is σ = 49691372. Its totient is φ = 49691370.

The previous prime is 49691363. The next prime is 49691401. The reversal of 49691371 is 17319694.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49691371 - 2³ = 49691363 is a prime.

It is equal to p_2983693 and since 49691371 and 2983693 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (49691321) 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 as a sum of consecutive naturals, namely, 24845685 + 24845686.

It is an arithmetic number, because the mean of its divisors is an integer number (24845686).

Almost surely, 2^49691371 is an apocalyptic number.

49691371 is a deficient number, since it is larger than the sum of its proper divisors (1).

49691371 is an equidigital number, since it uses as much as digits as its factorization.

49691371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 40.

The square root of 49691371 is about 7049.2106650319. The cubic root of 49691371 is about 367.6435855850.

The spelling of 49691371 in words is "forty-nine million, six hundred ninety-one thousand, three hundred seventy-one".