83634842 has 8 divisors (see below), whose sum is σ = 126251796. Its totient is φ = 41550912.

The previous prime is 83634841. The next prime is 83634857. The reversal of 83634842 is 24843638.

It can be written as a sum of positive squares in 2 ways, for example, as 81198121 + 2436721 = 9011^2 + 1561^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 83634796 and 83634805.

It is not an unprimeable number, because it can be changed into a prime (83634841) 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, 132863 + ... + 133490.

Almost surely, 2^83634842 is an apocalyptic number.

83634842 is a deficient number, since it is larger than the sum of its proper divisors (42616954).

83634842 is a wasteful number, since it uses less digits than its factorization.

83634842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266512.

The product of its digits is 110592, while the sum is 38.

The square root of 83634842 is about 9145.2086908938. The cubic root of 83634842 is about 437.3163824844.

The spelling of 83634842 in words is "eighty-three million, six hundred thirty-four thousand, eight hundred forty-two".