88212997 has 4 divisors (see below), whose sum is σ = 88246156. Its totient is φ = 88179840.

The previous prime is 88212979. The next prime is 88213001. The reversal of 88212997 is 79921288.

88212997 is nontrivially palindromic in base 15.

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

It can be written as a sum of positive squares in 2 ways, for example, as 59814756 + 28398241 = 7734^2 + 5329^2 .

It is a cyclic number.

It is not a de Polignac number, because 88212997 - 2¹¹ = 88210949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88212947) 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, 12204 + ... + 18037.

It is an arithmetic number, because the mean of its divisors is an integer number (22061539).

Almost surely, 2^88212997 is an apocalyptic number.

It is an amenable number.

88212997 is a deficient number, since it is larger than the sum of its proper divisors (33159).

88212997 is a wasteful number, since it uses less digits than its factorization.

88212997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33158.

The product of its digits is 145152, while the sum is 46.

The square root of 88212997 is about 9392.1774365692. The cubic root of 88212997 is about 445.1545934284.

The spelling of 88212997 in words is "eighty-eight million, two hundred twelve thousand, nine hundred ninety-seven".