83919473 has 4 divisors (see below), whose sum is σ = 91548528. Its totient is φ = 76290420.

The previous prime is 83919467. The next prime is 83919491. The reversal of 83919473 is 37491938.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 83919473 - 2¹⁴ = 83903089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83919673) 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, 3814511 + ... + 3814532.

It is an arithmetic number, because the mean of its divisors is an integer number (22887132).

Almost surely, 2^83919473 is an apocalyptic number.

It is an amenable number.

83919473 is a deficient number, since it is larger than the sum of its proper divisors (7629055).

83919473 is a wasteful number, since it uses less digits than its factorization.

83919473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7629054.

The product of its digits is 163296, while the sum is 44.

The square root of 83919473 is about 9160.7572285265. The cubic root of 83919473 is about 437.8119210150.

The spelling of 83919473 in words is "eighty-three million, nine hundred nineteen thousand, four hundred seventy-three".