83130428 has 12 divisors (see below), whose sum is σ = 145598712. Its totient is φ = 41530800.

The previous prime is 83130419. The next prime is 83130433. The reversal of 83130428 is 82403138.

It is a happy number.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 83130428.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2723 + ... + 13178.

It is an arithmetic number, because the mean of its divisors is an integer number (12133226).

Almost surely, 2^83130428 is an apocalyptic number.

It is an amenable number.

83130428 is a deficient number, since it is larger than the sum of its proper divisors (62468284).

83130428 is a wasteful number, since it uses less digits than its factorization.

83130428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17212 (or 17210 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 83130428 is about 9117.5889356781. The cubic root of 83130428 is about 436.4354359811.

The spelling of 83130428 in words is "eighty-three million, one hundred thirty thousand, four hundred twenty-eight".