83749419 has 24 divisors (see below), whose sum is σ = 134774640. Its totient is φ = 49758912.

The previous prime is 83749357. The next prime is 83749427. The reversal of 83749419 is 91494738.

It is not a de Polignac number, because 83749419 - 2⁷ = 83749291 is a prime.

It is a super-2 number, since 2×83749419² = 14027930365675122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (83749439) 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 in 23 ways as a sum of consecutive naturals, for example, 8949 + ... + 15734.

It is an arithmetic number, because the mean of its divisors is an integer number (5615610).

Almost surely, 2^83749419 is an apocalyptic number.

83749419 is a deficient number, since it is larger than the sum of its proper divisors (51025221).

83749419 is a wasteful number, since it uses less digits than its factorization.

83749419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24731 (or 24728 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 83749419 is about 9151.4708653855. The cubic root of 83749419 is about 437.5159944085.

The spelling of 83749419 in words is "eighty-three million, seven hundred forty-nine thousand, four hundred nineteen".