88667857 has 2 divisors, whose sum is σ = 88667858. Its totient is φ = 88667856.

The previous prime is 88667749. The next prime is 88667861. The reversal of 88667857 is 75876688.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74235456 + 14432401 = 8616^2 + 3799^2 .

It is a cyclic number.

It is not a de Polignac number, because 88667857 - 2⁷ = 88667729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 88667798 and 88667807.

It is not a weakly prime, because it can be changed into another prime (88667057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44333928 + 44333929.

It is an arithmetic number, because the mean of its divisors is an integer number (44333929).

Almost surely, 2^88667857 is an apocalyptic number.

It is an amenable number.

88667857 is a deficient number, since it is larger than the sum of its proper divisors (1).

88667857 is an equidigital number, since it uses as much as digits as its factorization.

88667857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4515840, while the sum is 55.

The square root of 88667857 is about 9416.3611336864. The cubic root of 88667857 is about 445.9184112789.

The spelling of 88667857 in words is "eighty-eight million, six hundred sixty-seven thousand, eight hundred fifty-seven".