83479890 has 32 divisors (see below), whose sum is σ = 215764416. Its totient is φ = 20548800.

The previous prime is 83479859. The next prime is 83479909. The reversal of 83479890 is 9897438.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106636 + ... + 107415.

It is an arithmetic number, because the mean of its divisors is an integer number (6742638).

Almost surely, 2^83479890 is an apocalyptic number.

83479890 is an abundant number, since it is smaller than the sum of its proper divisors (132284526).

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

83479890 is a wasteful number, since it uses less digits than its factorization.

83479890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214074.

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

The square root of 83479890 is about 9136.7330047452. The cubic root of 83479890 is about 437.0461404885.

The spelling of 83479890 in words is "eighty-three million, four hundred seventy-nine thousand, eight hundred ninety".