88666643 has 4 divisors (see below), whose sum is σ = 95487168. Its totient is φ = 81846120.

The previous prime is 88666637. The next prime is 88666649. The reversal of 88666643 is 34666688.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (88666637) and next prime (88666649).

It is a cyclic number.

It is not a de Polignac number, because 88666643 - 2⁶ = 88666579 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (88666649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3410243 + ... + 3410268.

It is an arithmetic number, because the mean of its divisors is an integer number (23871792).

Almost surely, 2^88666643 is an apocalyptic number.

88666643 is a deficient number, since it is larger than the sum of its proper divisors (6820525).

88666643 is a wasteful number, since it uses less digits than its factorization.

88666643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6820524.

The product of its digits is 995328, while the sum is 47.

The square root of 88666643 is about 9416.2966711972. The cubic root of 88666643 is about 445.9163761655.

The spelling of 88666643 in words is "eighty-eight million, six hundred sixty-six thousand, six hundred forty-three".