88709513 has 2 divisors, whose sum is σ = 88709514. Its totient is φ = 88709512.

The previous prime is 88709503. The next prime is 88709531. The reversal of 88709513 is 31590788.

It is a happy number.

Together with next prime (88709531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88209664 + 499849 = 9392^2 + 707^2 .

It is a cyclic number.

It is not a de Polignac number, because 88709513 - 2⁴ = 88709497 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (88709503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44354756 + 44354757.

It is an arithmetic number, because the mean of its divisors is an integer number (44354757).

Almost surely, 2^88709513 is an apocalyptic number.

It is an amenable number.

88709513 is a deficient number, since it is larger than the sum of its proper divisors (1).

88709513 is an equidigital number, since it uses as much as digits as its factorization.

88709513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 88709513 is about 9418.5727687373. The cubic root of 88709513 is about 445.9882309026.

The spelling of 88709513 in words is "eighty-eight million, seven hundred nine thousand, five hundred thirteen".