83020851 has 12 divisors (see below), whose sum is σ = 119999880. Its totient is φ = 55309920.

The previous prime is 83020841. The next prime is 83020853. The reversal of 83020851 is 15802038.

It is a happy number.

It is not a de Polignac number, because 83020851 - 2²² = 78826547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83020853) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20080 + ... + 23858.

It is an arithmetic number, because the mean of its divisors is an integer number (9999990).

Almost surely, 2^83020851 is an apocalyptic number.

83020851 is a deficient number, since it is larger than the sum of its proper divisors (36979029).

83020851 is a wasteful number, since it uses less digits than its factorization.

83020851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6226 (or 6223 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 83020851 is about 9111.5778545760. The cubic root of 83020851 is about 436.2435916115.

Adding to 83020851 its reverse (15802038), we get a palindrome (98822889).

The spelling of 83020851 in words is "eighty-three million, twenty thousand, eight hundred fifty-one".