83542378 has 16 divisors (see below), whose sum is σ = 129254400. Its totient is φ = 40473216.

The previous prime is 83542357. The next prime is 83542391. The reversal of 83542378 is 87324538.

It is a self number, because there is not a number n which added to its sum of digits gives 83542378.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7098 + ... + 14746.

It is an arithmetic number, because the mean of its divisors is an integer number (8078400).

Almost surely, 2^83542378 is an apocalyptic number.

83542378 is a deficient number, since it is larger than the sum of its proper divisors (45712022).

83542378 is a wasteful number, since it uses less digits than its factorization.

83542378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7821.

The product of its digits is 161280, while the sum is 40.

The square root of 83542378 is about 9140.1519681021. The cubic root of 83542378 is about 437.1551620657.

The spelling of 83542378 in words is "eighty-three million, five hundred forty-two thousand, three hundred seventy-eight".