84620911 has 4 divisors (see below), whose sum is σ = 84639592. Its totient is φ = 84602232.

The previous prime is 84620909. The next prime is 84620953. The reversal of 84620911 is 11902648.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 84620911 - 2¹ = 84620909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84620981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2245 + ... + 13201.

It is an arithmetic number, because the mean of its divisors is an integer number (21159898).

Almost surely, 2^84620911 is an apocalyptic number.

84620911 is a deficient number, since it is larger than the sum of its proper divisors (18681).

84620911 is a wasteful number, since it uses less digits than its factorization.

84620911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18680.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 84620911 is about 9198.9624958470. The cubic root of 84620911 is about 439.0283500353.

The spelling of 84620911 in words is "eighty-four million, six hundred twenty thousand, nine hundred eleven".