83647488 has 88 divisors (see below), whose sum is σ = 226611088. Its totient is φ = 27426816.

The previous prime is 83647471. The next prime is 83647489. The reversal of 83647488 is 88474638.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83647489) 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, 224070 + ... + 224442.

It is an arithmetic number, because the mean of its divisors is an integer number (2575126).

Almost surely, 2^83647488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83647488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113305544).

83647488 is an abundant number, since it is smaller than the sum of its proper divisors (142963600).

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

83647488 is a wasteful number, since it uses less digits than its factorization.

83647488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469 (or 451 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 48.

The square root of 83647488 is about 9145.9000650565. The cubic root of 83647488 is about 437.3384228372.

The spelling of 83647488 in words is "eighty-three million, six hundred forty-seven thousand, four hundred eighty-eight".