83091648 has 56 divisors (see below), whose sum is σ = 232787952. Its totient is φ = 26066944.

The previous prime is 83091643. The next prime is 83091653. The reversal of 83091648 is 84619038.

It is an interprime number because it is at equal distance from previous prime (83091643) and next prime (83091653).

It is not an unprimeable number, because it can be changed into a prime (83091643) 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, 9465 + ... + 15992.

Almost surely, 2^83091648 is an apocalyptic number.

It is an amenable number.

83091648 is an abundant number, since it is smaller than the sum of its proper divisors (149696304).

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

83091648 is a wasteful number, since it uses less digits than its factorization.

83091648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25489 (or 25479 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 83091648 is about 9115.4620288826. The cubic root of 83091648 is about 436.3675603182.

The spelling of 83091648 in words is "eighty-three million, ninety-one thousand, six hundred forty-eight".