83874378 has 24 divisors (see below), whose sum is σ = 195136992. Its totient is φ = 23964024.

The previous prime is 83874377. The next prime is 83874389. The reversal of 83874378 is 87347838.

It is a super-2 number, since 2×83874378² = 14069822569773768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (83874377) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142350 + ... + 142937.

It is an arithmetic number, because the mean of its divisors is an integer number (8130708).

Almost surely, 2^83874378 is an apocalyptic number.

83874378 is an abundant number, since it is smaller than the sum of its proper divisors (111262614).

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

83874378 is a wasteful number, since it uses less digits than its factorization.

83874378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285306 (or 285299 counting only the distinct ones).

The product of its digits is 903168, while the sum is 48.

The square root of 83874378 is about 9158.2955837863. The cubic root of 83874378 is about 437.7334860371.

The spelling of 83874378 in words is "eighty-three million, eight hundred seventy-four thousand, three hundred seventy-eight".