88215667 has 4 divisors (see below), whose sum is σ = 88397296. Its totient is φ = 88034040.

The previous prime is 88215653. The next prime is 88215719. The reversal of 88215667 is 76651288.

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

It is a cyclic number.

It is not a de Polignac number, because 88215667 - 2⁷ = 88215539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88215467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90084 + ... + 91057.

It is an arithmetic number, because the mean of its divisors is an integer number (22099324).

Almost surely, 2^88215667 is an apocalyptic number.

88215667 is a deficient number, since it is larger than the sum of its proper divisors (181629).

88215667 is a wasteful number, since it uses less digits than its factorization.

88215667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181628.

The product of its digits is 161280, while the sum is 43.

The square root of 88215667 is about 9392.3195750571. The cubic root of 88215667 is about 445.1590846440.

The spelling of 88215667 in words is "eighty-eight million, two hundred fifteen thousand, six hundred sixty-seven".