88891535 has 12 divisors (see below), whose sum is σ = 109320552. Its totient is φ = 69351408.

The previous prime is 88891531. The next prime is 88891541. The reversal of 88891535 is 53519888.

It is not a de Polignac number, because 88891535 - 2² = 88891531 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 88891535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88891531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 137924 + ... + 138566.

It is an arithmetic number, because the mean of its divisors is an integer number (9110046).

Almost surely, 2^88891535 is an apocalyptic number.

88891535 is a deficient number, since it is larger than the sum of its proper divisors (20429017).

88891535 is an frugal number, since it uses more digits than its factorization.

88891535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334 (or 691 counting only the distinct ones).

The product of its digits is 345600, while the sum is 47.

The square root of 88891535 is about 9428.2307460096. The cubic root of 88891535 is about 446.2930618291.

The spelling of 88891535 in words is "eighty-eight million, eight hundred ninety-one thousand, five hundred thirty-five".