83619963 has 48 divisors (see below), whose sum is σ = 146777280. Its totient is φ = 44851968.

The previous prime is 83619961. The next prime is 83619971. The reversal of 83619963 is 36991638.

It is not a de Polignac number, because 83619963 - 2¹ = 83619961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83619961) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 66981 + ... + 68217.

It is an arithmetic number, because the mean of its divisors is an integer number (3057860).

Almost surely, 2^83619963 is an apocalyptic number.

83619963 is a deficient number, since it is larger than the sum of its proper divisors (63157317).

83619963 is a wasteful number, since it uses less digits than its factorization.

83619963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316 (or 1313 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 83619963 is about 9144.3951686265. The cubic root of 83619963 is about 437.2904474546.

The spelling of 83619963 in words is "eighty-three million, six hundred nineteen thousand, nine hundred sixty-three".