88645 has 4 divisors (see below), whose sum is σ = 106380. Its totient is φ = 70912.

The previous prime is 88643. The next prime is 88651. The reversal of 88645 is 54688.

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

It can be written as a sum of positive squares in 2 ways, for example, as 45796 + 42849 = 214^2 + 207^2 .

It is a cyclic number.

It is not a de Polignac number, because 88645 - 2¹ = 88643 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88643) 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, 8860 + ... + 8869.

It is an arithmetic number, because the mean of its divisors is an integer number (26595).

2⁸⁸⁶⁴⁵ is an apocalyptic number.

It is an amenable number.

88645 is a deficient number, since it is larger than the sum of its proper divisors (17735).

88645 is a wasteful number, since it uses less digits than its factorization.

88645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17734.

The product of its digits is 7680, while the sum is 31.

The square root of 88645 is about 297.7331019554. The cubic root of 88645 is about 44.5880091368.

The spelling of 88645 in words is "eighty-eight thousand, six hundred forty-five".