88240729 has 2 divisors, whose sum is σ = 88240730. Its totient is φ = 88240728.

The previous prime is 88240619. The next prime is 88240753. The reversal of 88240729 is 92704288.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87385104 + 855625 = 9348^2 + 925^2 .

It is a cyclic number.

It is not a de Polignac number, because 88240729 - 2¹³ = 88232537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 88240691 and 88240700.

It is not a weakly prime, because it can be changed into another prime (88220729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44120364 + 44120365.

It is an arithmetic number, because the mean of its divisors is an integer number (44120365).

Almost surely, 2^88240729 is an apocalyptic number.

It is an amenable number.

88240729 is a deficient number, since it is larger than the sum of its proper divisors (1).

88240729 is an equidigital number, since it uses as much as digits as its factorization.

88240729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 88240729 is about 9393.6536555272. The cubic root of 88240729 is about 445.2012370983.

The spelling of 88240729 in words is "eighty-eight million, two hundred forty thousand, seven hundred twenty-nine".