49981719 has 8 divisors (see below), whose sum is σ = 66732912. Its totient is φ = 33275840.

The previous prime is 49981699. The next prime is 49981787. The reversal of 49981719 is 91718994.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49981719 is a prime.

It is a super-2 number, since 2×49981719² = 4996344468389922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49981219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8664 + ... + 13229.

It is an arithmetic number, because the mean of its divisors is an integer number (8341614).

Almost surely, 2^49981719 is an apocalyptic number.

49981719 is a deficient number, since it is larger than the sum of its proper divisors (16751193).

49981719 is a wasteful number, since it uses less digits than its factorization.

49981719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22657.

The product of its digits is 163296, while the sum is 48.

The square root of 49981719 is about 7069.7750317814. The cubic root of 49981719 is about 368.3582458711.

The spelling of 49981719 in words is "forty-nine million, nine hundred eighty-one thousand, seven hundred nineteen".