88662209 has 2 divisors, whose sum is σ = 88662210. Its totient is φ = 88662208.

The previous prime is 88662199. The next prime is 88662221. The reversal of 88662209 is 90226688.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76038400 + 12623809 = 8720^2 + 3553^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-88662209 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (88662229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44331104 + 44331105.

It is an arithmetic number, because the mean of its divisors is an integer number (44331105).

Almost surely, 2^88662209 is an apocalyptic number.

It is an amenable number.

88662209 is a deficient number, since it is larger than the sum of its proper divisors (1).

88662209 is an equidigital number, since it uses as much as digits as its factorization.

88662209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 88662209 is about 9416.0612253744. The cubic root of 88662209 is about 445.9089429824.

The spelling of 88662209 in words is "eighty-eight million, six hundred sixty-two thousand, two hundred nine".