83421035929 has 63 divisors (see below), whose sum is σ = 110299330917. Its totient is φ = 62906520600.

The previous prime is 83421035899. The next prime is 83421035939. The reversal of 83421035929 is 92953012438.

The square root of 83421035929 is 288827.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 83421035929 - 2¹¹ = 83421033881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83421035939) by changing a digit.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 2691001144 + ... + 2691001174.

Almost surely, 2^83421035929 is an apocalyptic number.

83421035929 is the 288827-th square number.

83421035929 is the 144414-th centered octagonal number.

It is an amenable number.

83421035929 is a deficient number, since it is larger than the sum of its proper divisors (26878294988).

83421035929 is an frugal number, since it uses more digits than its factorization.

83421035929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 49 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 46.

The spelling of 83421035929 in words is "eighty-three billion, four hundred twenty-one million, thirty-five thousand, nine hundred twenty-nine".