83742219 has 12 divisors (see below), whose sum is σ = 131957592. Its totient is φ = 50752800.

The previous prime is 83742179. The next prime is 83742229. The reversal of 83742219 is 91224738.

It is not a de Polignac number, because 83742219 - 2¹⁶ = 83676683 is a prime.

It is a super-2 number, since 2×83742219² = 14025518486087922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (83742229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 422842 + ... + 423039.

It is an arithmetic number, because the mean of its divisors is an integer number (10996466).

Almost surely, 2^83742219 is an apocalyptic number.

83742219 is a deficient number, since it is larger than the sum of its proper divisors (48215373).

83742219 is a wasteful number, since it uses less digits than its factorization.

83742219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845898 (or 845895 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 83742219 is about 9151.0774775433. The cubic root of 83742219 is about 437.5034561904.

The spelling of 83742219 in words is "eighty-three million, seven hundred forty-two thousand, two hundred nineteen".