83872434 has 8 divisors (see below), whose sum is σ = 167744880. Its totient is φ = 27957476.

The previous prime is 83872433. The next prime is 83872457. The reversal of 83872434 is 43427838.

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

83872434 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 83872392 and 83872401.

It is not an unprimeable number, because it can be changed into a prime (83872433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6989364 + ... + 6989375.

It is an arithmetic number, because the mean of its divisors is an integer number (20968110).

Almost surely, 2^83872434 is an apocalyptic number.

83872434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83872434 is a wasteful number, since it uses less digits than its factorization.

83872434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13978744.

The product of its digits is 129024, while the sum is 39.

The square root of 83872434 is about 9158.1894498858. The cubic root of 83872434 is about 437.7301041522.

The spelling of 83872434 in words is "eighty-three million, eight hundred seventy-two thousand, four hundred thirty-four".