88216631 has 4 divisors (see below), whose sum is σ = 89425152. Its totient is φ = 87008112.

The previous prime is 88216627. The next prime is 88216651. The reversal of 88216631 is 13661288.

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 88216631 - 2² = 88216627 is a prime.

It is a super-2 number, since 2×88216631² = 15564347969980322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 88216591 and 88216600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88216651) 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 3 ways as a sum of consecutive naturals, for example, 604151 + ... + 604296.

It is an arithmetic number, because the mean of its divisors is an integer number (22356288).

Almost surely, 2^88216631 is an apocalyptic number.

88216631 is a deficient number, since it is larger than the sum of its proper divisors (1208521).

88216631 is a wasteful number, since it uses less digits than its factorization.

88216631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1208520.

The product of its digits is 13824, while the sum is 35.

The square root of 88216631 is about 9392.3708934433. The cubic root of 88216631 is about 445.1607061693.

The spelling of 88216631 in words is "eighty-eight million, two hundred sixteen thousand, six hundred thirty-one".