84915963 has 12 divisors (see below), whose sum is σ = 133807128. Its totient is φ = 51464160.

The previous prime is 84915937. The next prime is 84915967. The reversal of 84915963 is 36951948.

It is a happy number.

It is not a de Polignac number, because 84915963 - 2¹⁷ = 84784891 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (84915967) 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, 428770 + ... + 428967.

It is an arithmetic number, because the mean of its divisors is an integer number (11150594).

Almost surely, 2^84915963 is an apocalyptic number.

84915963 is a deficient number, since it is larger than the sum of its proper divisors (48891165).

84915963 is a wasteful number, since it uses less digits than its factorization.

84915963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857754 (or 857751 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 84915963 is about 9214.9857840368. The cubic root of 84915963 is about 439.5380188973.

The spelling of 84915963 in words is "eighty-four million, nine hundred fifteen thousand, nine hundred sixty-three".