84979963 has 8 divisors (see below), whose sum is σ = 88790688. Its totient is φ = 81178944.

The previous prime is 84979949. The next prime is 84979969. The reversal of 84979963 is 36997948.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84979963 - 2⁹ = 84979451 is a prime.

It is a super-2 number, since 2×84979963² = 14443188222962738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84979969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19981 + ... + 23857.

It is an arithmetic number, because the mean of its divisors is an integer number (11098836).

Almost surely, 2^84979963 is an apocalyptic number.

84979963 is a deficient number, since it is larger than the sum of its proper divisors (3810725).

84979963 is a wasteful number, since it uses less digits than its factorization.

84979963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4853.

The product of its digits is 2939328, while the sum is 55.

The square root of 84979963 is about 9218.4577343501. The cubic root of 84979963 is about 439.6484157650.

The spelling of 84979963 in words is "eighty-four million, nine hundred seventy-nine thousand, nine hundred sixty-three".