83939019 has 8 divisors (see below), whose sum is σ = 112284480. Its totient is φ = 55776456.

The previous prime is 83938997. The next prime is 83939057. The reversal of 83939019 is 91093938.

It is a happy number.

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

It is not a de Polignac number, because 83939019 - 2⁹ = 83938507 is a prime.

It is a super-2 number, since 2×83939019² = 14091517821364722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (83939099) 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, 44649 + ... + 46490.

It is an arithmetic number, because the mean of its divisors is an integer number (14035560).

Almost surely, 2^83939019 is an apocalyptic number.

83939019 is a deficient number, since it is larger than the sum of its proper divisors (28345461).

83939019 is a wasteful number, since it uses less digits than its factorization.

83939019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91449.

The product of its (nonzero) digits is 52488, while the sum is 42.

The square root of 83939019 is about 9161.8239996193. The cubic root of 83939019 is about 437.8459091833.

The spelling of 83939019 in words is "eighty-three million, nine hundred thirty-nine thousand, nineteen".