83354780 has 24 divisors (see below), whose sum is σ = 175216608. Its totient is φ = 33309248.

The previous prime is 83354779. The next prime is 83354801. The reversal of 83354780 is 8745338.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38897 + ... + 40983.

It is an arithmetic number, because the mean of its divisors is an integer number (7300692).

Almost surely, 2^83354780 is an apocalyptic number.

It is an amenable number.

83354780 is an abundant number, since it is smaller than the sum of its proper divisors (91861828).

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

83354780 is a wasteful number, since it uses less digits than its factorization.

83354780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4093 (or 4091 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 83354780 is about 9129.8838984951. The cubic root of 83354780 is about 436.8276999322.

The spelling of 83354780 in words is "eighty-three million, three hundred fifty-four thousand, seven hundred eighty".