88666573 has 2 divisors, whose sum is σ = 88666574. Its totient is φ = 88666572.

The previous prime is 88666549. The next prime is 88666579. The reversal of 88666573 is 37566688.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86825124 + 1841449 = 9318^2 + 1357^2 .

It is a cyclic number.

It is not a de Polignac number, because 88666573 - 2²¹ = 86569421 is a prime.

It is a super-2 number, since 2×88666573² = 15723522335128658, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88666579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44333286 + 44333287.

It is an arithmetic number, because the mean of its divisors is an integer number (44333287).

Almost surely, 2^88666573 is an apocalyptic number.

It is an amenable number.

88666573 is a deficient number, since it is larger than the sum of its proper divisors (1).

88666573 is an equidigital number, since it uses as much as digits as its factorization.

88666573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1451520, while the sum is 49.

The square root of 88666573 is about 9416.2929542363. The cubic root of 88666573 is about 445.9162588190.

The spelling of 88666573 in words is "eighty-eight million, six hundred sixty-six thousand, five hundred seventy-three".