84979011 has 16 divisors (see below), whose sum is σ = 122205440. Its totient is φ = 52215840.

The previous prime is 84978979. The next prime is 84979031. The reversal of 84979011 is 11097948.

It is a happy number.

It is not a de Polignac number, because 84979011 - 2⁵ = 84978979 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84979031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34656 + ... + 37026.

It is an arithmetic number, because the mean of its divisors is an integer number (7637840).

Almost surely, 2^84979011 is an apocalyptic number.

84979011 is a deficient number, since it is larger than the sum of its proper divisors (37226429).

84979011 is a wasteful number, since it uses less digits than its factorization.

84979011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3306.

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 84979011 is about 9218.4060986702. The cubic root of 84979011 is about 439.6467740178.

The spelling of 84979011 in words is "eighty-four million, nine hundred seventy-nine thousand, eleven".