84631956 has 24 divisors (see below), whose sum is σ = 198350880. Its totient is φ = 28085472.

The previous prime is 84631951. The next prime is 84631979. The reversal of 84631956 is 65913648.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84631951) 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 7 ways as a sum of consecutive naturals, for example, 12811 + ... + 18258.

It is an arithmetic number, because the mean of its divisors is an integer number (8264620).

Almost surely, 2^84631956 is an apocalyptic number.

It is an amenable number.

84631956 is an abundant number, since it is smaller than the sum of its proper divisors (113718924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84631956 is a wasteful number, since it uses less digits than its factorization.

84631956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31303 (or 31301 counting only the distinct ones).

The product of its digits is 155520, while the sum is 42.

The square root of 84631956 is about 9199.5628156995. The cubic root of 84631956 is about 439.0474503464.

The spelling of 84631956 in words is "eighty-four million, six hundred thirty-one thousand, nine hundred fifty-six".