88421859 has 6 divisors (see below), whose sum is σ = 127720476. Its totient is φ = 58947900.

The previous prime is 88421849. The next prime is 88421873. The reversal of 88421859 is 95812488.

It is a happy number.

It is not a de Polignac number, because 88421859 - 2⁸ = 88421603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (88421819) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4912317 + ... + 4912334.

It is an arithmetic number, because the mean of its divisors is an integer number (21286746).

Almost surely, 2^88421859 is an apocalyptic number.

88421859 is a deficient number, since it is larger than the sum of its proper divisors (39298617).

88421859 is a wasteful number, since it uses less digits than its factorization.

88421859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9824657 (or 9824654 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The square root of 88421859 is about 9403.2897966616. The cubic root of 88421859 is about 445.5056475003.

It can be divided in two parts, 8842 and 1859, that added together give a palindrome (10701).

The spelling of 88421859 in words is "eighty-eight million, four hundred twenty-one thousand, eight hundred fifty-nine".