83128701 has 8 divisors (see below), whose sum is σ = 114413824. Its totient is φ = 53631360.

The previous prime is 83128687. The next prime is 83128711. The reversal of 83128701 is 10782138.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 83128701 - 2⁹ = 83128189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83128711) 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, 446836 + ... + 447021.

It is an arithmetic number, because the mean of its divisors is an integer number (14301728).

Almost surely, 2^83128701 is an apocalyptic number.

It is an amenable number.

83128701 is a deficient number, since it is larger than the sum of its proper divisors (31285123).

83128701 is a wasteful number, since it uses less digits than its factorization.

83128701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893891.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 83128701 is about 9117.4942281309. The cubic root of 83128701 is about 436.4324137054.

The spelling of 83128701 in words is "eighty-three million, one hundred twenty-eight thousand, seven hundred one".