88721105 has 16 divisors (see below), whose sum is σ = 116339328. Its totient is φ = 64416000.

The previous prime is 88721093. The next prime is 88721123. The reversal of 88721105 is 50112788.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-88721105 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47540 + ... + 49370.

It is an arithmetic number, because the mean of its divisors is an integer number (7271208).

Almost surely, 2^88721105 is an apocalyptic number.

It is an amenable number.

88721105 is a deficient number, since it is larger than the sum of its proper divisors (27618223).

88721105 is a wasteful number, since it uses less digits than its factorization.

88721105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2728.

The product of its (nonzero) digits is 4480, while the sum is 32.

The square root of 88721105 is about 9419.1881284960. The cubic root of 88721105 is about 446.0076563668.

The spelling of 88721105 in words is "eighty-eight million, seven hundred twenty-one thousand, one hundred five".