83907984 has 20 divisors (see below), whose sum is σ = 216762416. Its totient is φ = 27969312.

The previous prime is 83907983. The next prime is 83907997. The reversal of 83907984 is 48970938.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 1748083 = 83907984 / (8 + 3 + 9 + 0 + 7 + 9 + 8 + 4).

It is not an unprimeable number, because it can be changed into a prime (83907983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 873994 + ... + 874089.

Almost surely, 2^83907984 is an apocalyptic number.

It is an amenable number.

83907984 is an abundant number, since it is smaller than the sum of its proper divisors (132854432).

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

83907984 is a wasteful number, since it uses less digits than its factorization.

83907984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1748094 (or 1748088 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 83907984 is about 9160.1301300800. The cubic root of 83907984 is about 437.7919405482.

The spelling of 83907984 in words is "eighty-three million, nine hundred seven thousand, nine hundred eighty-four".