88228649 has 2 divisors, whose sum is σ = 88228650. Its totient is φ = 88228648.

The previous prime is 88228639. The next prime is 88228663. The reversal of 88228649 is 94682288.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87759424 + 469225 = 9368^2 + 685^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-88228649 is a prime.

It is not a weakly prime, because it can be changed into another prime (88228619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44114324 + 44114325.

It is an arithmetic number, because the mean of its divisors is an integer number (44114325).

Almost surely, 2^88228649 is an apocalyptic number.

It is an amenable number.

88228649 is a deficient number, since it is larger than the sum of its proper divisors (1).

88228649 is an equidigital number, since it uses as much as digits as its factorization.

88228649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 442368, while the sum is 47.

The square root of 88228649 is about 9393.0106462199. The cubic root of 88228649 is about 445.1809204168.

It can be divided in two parts, 8822 and 8649, that added together give a palindrome (17471).

The spelling of 88228649 in words is "eighty-eight million, two hundred twenty-eight thousand, six hundred forty-nine".