83498870 has 32 divisors (see below), whose sum is σ = 184984128. Its totient is φ = 26425728.

The previous prime is 83498851. The next prime is 83498873. The reversal of 83498870 is 7889438.

It is a super-2 number, since 2×83498870² = 13944122582553800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83498873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44969 + ... + 46788.

It is an arithmetic number, because the mean of its divisors is an integer number (5780754).

Almost surely, 2^83498870 is an apocalyptic number.

83498870 is an abundant number, since it is smaller than the sum of its proper divisors (101485258).

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

83498870 is a wasteful number, since it uses less digits than its factorization.

83498870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91784.

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 83498870 is about 9137.7716101903. The cubic root of 83498870 is about 437.0792602701.

The spelling of 83498870 in words is "eighty-three million, four hundred ninety-eight thousand, eight hundred seventy".