88791217 has 4 divisors (see below), whose sum is σ = 88935280. Its totient is φ = 88647156.

The previous prime is 88791169. The next prime is 88791229. The reversal of 88791217 is 71219788.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 88791217 - 2¹⁹ = 88266929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88791257) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 71103 + ... + 72340.

It is an arithmetic number, because the mean of its divisors is an integer number (22233820).

Almost surely, 2^88791217 is an apocalyptic number.

It is an amenable number.

88791217 is a deficient number, since it is larger than the sum of its proper divisors (144063).

88791217 is a wasteful number, since it uses less digits than its factorization.

88791217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144062.

The product of its digits is 56448, while the sum is 43.

The square root of 88791217 is about 9422.9091580042. The cubic root of 88791217 is about 446.1251115286.

It can be divided in two parts, 8 and 8791217, that added together give a square (8791225 = 2965²).

The spelling of 88791217 in words is "eighty-eight million, seven hundred ninety-one thousand, two hundred seventeen".