83989480 has 32 divisors (see below), whose sum is σ = 189446400. Its totient is φ = 33512256.

The previous prime is 83989459. The next prime is 83989489. The reversal of 83989480 is 8498938.

83989480 = 468² + 469² + ... + 707².

It is a happy number.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (83989489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15169 + ... + 19951.

It is an arithmetic number, because the mean of its divisors is an integer number (5920200).

Almost surely, 2^83989480 is an apocalyptic number.

It is an amenable number.

83989480 is an abundant number, since it is smaller than the sum of its proper divisors (105456920).

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

83989480 is a wasteful number, since it uses less digits than its factorization.

83989480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5233 (or 5229 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 49.

The square root of 83989480 is about 9164.5774588903. The cubic root of 83989480 is about 437.9336304710.

The spelling of 83989480 in words is "eighty-three million, nine hundred eighty-nine thousand, four hundred eighty".