83921434 has 8 divisors (see below), whose sum is σ = 131355360. Its totient is φ = 40136316.

The previous prime is 83921429. The next prime is 83921437. The reversal of 83921434 is 43412938.

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

It is a self number, because there is not a number n which added to its sum of digits gives 83921434.

It is not an unprimeable number, because it can be changed into a prime (83921437) 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, 912144 + ... + 912235.

It is an arithmetic number, because the mean of its divisors is an integer number (16419420).

Almost surely, 2^83921434 is an apocalyptic number.

83921434 is a deficient number, since it is larger than the sum of its proper divisors (47433926).

83921434 is a wasteful number, since it uses less digits than its factorization.

83921434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824404.

The product of its digits is 20736, while the sum is 34.

The square root of 83921434 is about 9160.8642605379. The cubic root of 83921434 is about 437.8153311988.

The spelling of 83921434 in words is "eighty-three million, nine hundred twenty-one thousand, four hundred thirty-four".