83434784 has 12 divisors (see below), whose sum is σ = 164262294. Its totient is φ = 41717376.

The previous prime is 83434753. The next prime is 83434829. The reversal of 83434784 is 48743438.

It can be written as a sum of positive squares in only one way, i.e., 64320400 + 19114384 = 8020^2 + 4372^2 .

It is a super-2 number, since 2×83434784² = 13922726362253312, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1303637 + ... + 1303700.

Almost surely, 2^83434784 is an apocalyptic number.

It is an amenable number.

83434784 is a deficient number, since it is larger than the sum of its proper divisors (80827510).

83434784 is a wasteful number, since it uses less digits than its factorization.

83434784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2607347 (or 2607339 counting only the distinct ones).

The product of its digits is 258048, while the sum is 41.

The square root of 83434784 is about 9134.2642834549. The cubic root of 83434784 is about 436.9674111290.

The spelling of 83434784 in words is "eighty-three million, four hundred thirty-four thousand, seven hundred eighty-four".