83219471 has 4 divisors (see below), whose sum is σ = 88114752. Its totient is φ = 78324192.

The previous prime is 83219447. The next prime is 83219483. The reversal of 83219471 is 17491238.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83219471 is a prime.

It is a super-3 number, since 3×83219471³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83269471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2447615 + ... + 2447648.

It is an arithmetic number, because the mean of its divisors is an integer number (22028688).

Almost surely, 2^83219471 is an apocalyptic number.

83219471 is a deficient number, since it is larger than the sum of its proper divisors (4895281).

83219471 is a wasteful number, since it uses less digits than its factorization.

83219471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4895280.

The product of its digits is 12096, while the sum is 35.

The square root of 83219471 is about 9122.4706631482. The cubic root of 83219471 is about 436.5912058740.

The spelling of 83219471 in words is "eighty-three million, two hundred nineteen thousand, four hundred seventy-one".