84781106 has 4 divisors (see below), whose sum is σ = 127171662. Its totient is φ = 42390552.

The previous prime is 84781093. The next prime is 84781111. The reversal of 84781106 is 60118748.

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

It can be written as a sum of positive squares in only one way, i.e., 57896881 + 26884225 = 7609^2 + 5185^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 21195275 + ... + 21195278.

Almost surely, 2^84781106 is an apocalyptic number.

84781106 is a deficient number, since it is larger than the sum of its proper divisors (42390556).

84781106 is a wasteful number, since it uses less digits than its factorization.

84781106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42390555.

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 84781106 is about 9207.6656107832. The cubic root of 84781106 is about 439.3052154574.

The spelling of 84781106 in words is "eighty-four million, seven hundred eighty-one thousand, one hundred six".