49686719 has 2 divisors, whose sum is σ = 49686720. Its totient is φ = 49686718.

The previous prime is 49686683. The next prime is 49686737. The reversal of 49686719 is 91768694.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49686719 - 2¹² = 49682623 is a prime.

It is a super-2 number, since 2×49686719² = 4937540089969922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49686779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24843359 + 24843360.

It is an arithmetic number, because the mean of its divisors is an integer number (24843360).

Almost surely, 2^49686719 is an apocalyptic number.

49686719 is a deficient number, since it is larger than the sum of its proper divisors (1).

49686719 is an equidigital number, since it uses as much as digits as its factorization.

49686719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 50.

The square root of 49686719 is about 7048.8806912871. The cubic root of 49686719 is about 367.6321125579.

It can be divided in two parts, 49686 and 719, that added together give a palindrome (50405).

The spelling of 49686719 in words is "forty-nine million, six hundred eighty-six thousand, seven hundred nineteen".