88990729829 has 2 divisors, whose sum is σ = 88990729830. Its totient is φ = 88990729828.

The previous prime is 88990729813. The next prime is 88990729843. The reversal of 88990729829 is 92892709988.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62788832929 + 26201896900 = 250577^2 + 161870^2 .

It is a cyclic number.

It is not a de Polignac number, because 88990729829 - 2⁴ = 88990729813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88990729129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44495364914 + 44495364915.

It is an arithmetic number, because the mean of its divisors is an integer number (44495364915).

Almost surely, 2^88990729829 is an apocalyptic number.

It is an amenable number.

88990729829 is a deficient number, since it is larger than the sum of its proper divisors (1).

88990729829 is an equidigital number, since it uses as much as digits as its factorization.

88990729829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94058496, while the sum is 71.

The spelling of 88990729829 in words is "eighty-eight billion, nine hundred ninety million, seven hundred twenty-nine thousand, eight hundred twenty-nine".