83478136 has 32 divisors (see below), whose sum is σ = 183047040. Its totient is φ = 34943328.

The previous prime is 83478121. The next prime is 83478139. The reversal of 83478136 is 63187438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83478139) 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, 14926 + ... + 19741.

It is an arithmetic number, because the mean of its divisors is an integer number (5720220).

Almost surely, 2^83478136 is an apocalyptic number.

83478136 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

It is an amenable number.

83478136 is an abundant number, since it is smaller than the sum of its proper divisors (99568904).

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

83478136 is a wasteful number, since it uses less digits than its factorization.

83478136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34723 (or 34719 counting only the distinct ones).

The product of its digits is 96768, while the sum is 40.

The square root of 83478136 is about 9136.6370180718. The cubic root of 83478136 is about 437.0430795346.

The spelling of 83478136 in words is "eighty-three million, four hundred seventy-eight thousand, one hundred thirty-six".