83284380 has 72 divisors (see below), whose sum is σ = 263626272. Its totient is φ = 21242496.

The previous prime is 83284379. The next prime is 83284381. The reversal of 83284380 is 8348238.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (83284379) and next prime (83284381).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83284381) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5919 + ... + 14198.

It is an arithmetic number, because the mean of its divisors is an integer number (3661476).

Almost surely, 2^83284380 is an apocalyptic number.

It is an amenable number.

83284380 is an abundant number, since it is smaller than the sum of its proper divisors (180341892).

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

83284380 is a wasteful number, since it uses less digits than its factorization.

83284380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20155 (or 20150 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 83284380 is about 9126.0276133705. The cubic root of 83284380 is about 436.7046862635.

The spelling of 83284380 in words is "eighty-three million, two hundred eighty-four thousand, three hundred eighty".