83474784 has 36 divisors (see below), whose sum is σ = 237382236. Its totient is φ = 27824832.

The previous prime is 83474767. The next prime is 83474801. The reversal of 83474784 is 48747438.

It is an interprime number because it is at equal distance from previous prime (83474767) and next prime (83474801).

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 144634 + ... + 145209.

It is an arithmetic number, because the mean of its divisors is an integer number (6593951).

Almost surely, 2^83474784 is an apocalyptic number.

It is an amenable number.

83474784 is an abundant number, since it is smaller than the sum of its proper divisors (153907452).

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

83474784 is a wasteful number, since it uses less digits than its factorization.

83474784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289859 (or 289848 counting only the distinct ones).

The product of its digits is 602112, while the sum is 45.

The square root of 83474784 is about 9136.4535789331. The cubic root of 83474784 is about 437.0372297473.

It can be divided in two parts, 8347 and 4784, that added together give a palindrome (13131).

The spelling of 83474784 in words is "eighty-three million, four hundred seventy-four thousand, seven hundred eighty-four".