88667749 has 2 divisors, whose sum is σ = 88667750. Its totient is φ = 88667748.

The previous prime is 88667731. The next prime is 88667857. The reversal of 88667749 is 94776688.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86155524 + 2512225 = 9282^2 + 1585^2 .

It is a cyclic number.

It is not a de Polignac number, because 88667749 - 2⁹ = 88667237 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 88667749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88667729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44333874 + 44333875.

It is an arithmetic number, because the mean of its divisors is an integer number (44333875).

Almost surely, 2^88667749 is an apocalyptic number.

It is an amenable number.

88667749 is a deficient number, since it is larger than the sum of its proper divisors (1).

88667749 is an equidigital number, since it uses as much as digits as its factorization.

88667749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4064256, while the sum is 55.

The square root of 88667749 is about 9416.3553989853. The cubic root of 88667749 is about 445.9182302317.

It can be divided in two parts, 886 and 67749, that added together give a triangular number (68635 = T₃₇₀).

The spelling of 88667749 in words is "eighty-eight million, six hundred sixty-seven thousand, seven hundred forty-nine".