83718378 has 12 divisors (see below), whose sum is σ = 181389858. Its totient is φ = 27906120.

The previous prime is 83718373. The next prime is 83718379. The reversal of 83718378 is 87381738.

It can be written as a sum of positive squares in only one way, i.e., 68013009 + 15705369 = 8247^2 + 3963^2 .

It is not an unprimeable number, because it can be changed into a prime (83718373) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2325493 + ... + 2325528.

Almost surely, 2^83718378 is an apocalyptic number.

83718378 is an abundant number, since it is smaller than the sum of its proper divisors (97671480).

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

83718378 is a wasteful number, since it uses less digits than its factorization.

83718378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4651029 (or 4651026 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 83718378 is about 9149.7747513258. The cubic root of 83718378 is about 437.4619338853.

The spelling of 83718378 in words is "eighty-three million, seven hundred eighteen thousand, three hundred seventy-eight".