83649480 has 32 divisors (see below), whose sum is σ = 250948800. Its totient is φ = 22306496.

The previous prime is 83649383. The next prime is 83649487. The reversal of 83649480 is 8494638.

It is not an unprimeable number, because it can be changed into a prime (83649487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348420 + ... + 348659.

It is an arithmetic number, because the mean of its divisors is an integer number (7842150).

Almost surely, 2^83649480 is an apocalyptic number.

It is an amenable number.

83649480 is an abundant number, since it is smaller than the sum of its proper divisors (167299320).

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

83649480 is a wasteful number, since it uses less digits than its factorization.

83649480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697093 (or 697089 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 83649480 is about 9146.0089656637. The cubic root of 83649480 is about 437.3418944347.

The spelling of 83649480 in words is "eighty-three million, six hundred forty-nine thousand, four hundred eighty".