88639093 has 2 divisors, whose sum is σ = 88639094. Its totient is φ = 88639092.

The previous prime is 88639073. The next prime is 88639097. The reversal of 88639093 is 39093688.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63968004 + 24671089 = 7998^2 + 4967^2 .

It is a cyclic number.

It is not a de Polignac number, because 88639093 - 2⁹ = 88638581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88639097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44319546 + 44319547.

It is an arithmetic number, because the mean of its divisors is an integer number (44319547).

Almost surely, 2^88639093 is an apocalyptic number.

It is an amenable number.

88639093 is a deficient number, since it is larger than the sum of its proper divisors (1).

88639093 is an equidigital number, since it uses as much as digits as its factorization.

88639093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 88639093 is about 9414.8336682068. The cubic root of 88639093 is about 445.8701871729.

It can be divided in two parts, 8863 and 9093, that added together give a square (17956 = 134²).

The spelling of 88639093 in words is "eighty-eight million, six hundred thirty-nine thousand, ninety-three".