88646429 has 2 divisors, whose sum is σ = 88646430. Its totient is φ = 88646428.

The previous prime is 88646401. The next prime is 88646447. The reversal of 88646429 is 92464688.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80102500 + 8543929 = 8950^2 + 2923^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-88646429 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88646479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44323214 + 44323215.

It is an arithmetic number, because the mean of its divisors is an integer number (44323215).

Almost surely, 2^88646429 is an apocalyptic number.

It is an amenable number.

88646429 is a deficient number, since it is larger than the sum of its proper divisors (1).

88646429 is an equidigital number, since it uses as much as digits as its factorization.

88646429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 663552, while the sum is 47.

The square root of 88646429 is about 9415.2232581071. The cubic root of 88646429 is about 445.8824872892.

The spelling of 88646429 in words is "eighty-eight million, six hundred forty-six thousand, four hundred twenty-nine".