88885421 has 2 divisors, whose sum is σ = 88885422. Its totient is φ = 88885420.

The previous prime is 88885369. The next prime is 88885441. The reversal of 88885421 is 12458888.

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., 79032100 + 9853321 = 8890^2 + 3139^2 .

It is a cyclic number.

It is not a de Polignac number, because 88885421 - 2¹⁴ = 88869037 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a nialpdrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88885441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44442710 + 44442711.

It is an arithmetic number, because the mean of its divisors is an integer number (44442711).

Almost surely, 2^88885421 is an apocalyptic number.

It is an amenable number.

88885421 is a deficient number, since it is larger than the sum of its proper divisors (1).

88885421 is an equidigital number, since it uses as much as digits as its factorization.

88885421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163840, while the sum is 44.

The square root of 88885421 is about 9427.9065014456. The cubic root of 88885421 is about 446.2828295149.

The spelling of 88885421 in words is "eighty-eight million, eight hundred eighty-five thousand, four hundred twenty-one".