83869428 has 12 divisors (see below), whose sum is σ = 195695360. Its totient is φ = 27956472.

The previous prime is 83869411. The next prime is 83869441. The reversal of 83869428 is 82496838.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

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, 3494548 + ... + 3494571.

Almost surely, 2^83869428 is an apocalyptic number.

It is an amenable number.

83869428 is an abundant number, since it is smaller than the sum of its proper divisors (111825932).

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

83869428 is a wasteful number, since it uses less digits than its factorization.

83869428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6989126 (or 6989124 counting only the distinct ones).

The product of its digits is 663552, while the sum is 48.

The square root of 83869428 is about 9158.0253330071. The cubic root of 83869428 is about 437.7248746533.

The spelling of 83869428 in words is "eighty-three million, eight hundred sixty-nine thousand, four hundred twenty-eight".