84955949 has 4 divisors (see below), whose sum is σ = 91491036. Its totient is φ = 78420864.

The previous prime is 84955939. The next prime is 84955957. The reversal of 84955949 is 94955948.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8305924 + 76650025 = 2882^2 + 8755^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84955949 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84955949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84955909) 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 3 ways as a sum of consecutive naturals, for example, 3267524 + ... + 3267549.

It is an arithmetic number, because the mean of its divisors is an integer number (22872759).

Almost surely, 2^84955949 is an apocalyptic number.

It is an amenable number.

84955949 is a deficient number, since it is larger than the sum of its proper divisors (6535087).

84955949 is a wasteful number, since it uses less digits than its factorization.

84955949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6535086.

The product of its digits is 2332800, while the sum is 53.

The square root of 84955949 is about 9217.1551467901. The cubic root of 84955949 is about 439.6069992894.

Subtracting 84955949 from its reverse (94955948), we obtain a palindrome (9999999).

The spelling of 84955949 in words is "eighty-four million, nine hundred fifty-five thousand, nine hundred forty-nine".