88421535 has 36 divisors (see below), whose sum is σ = 161784792. Its totient is φ = 44667936.

The previous prime is 88421521. The next prime is 88421537. The reversal of 88421535 is 53512488.

It is a happy number.

88421535 is a `hidden beast` number, since 88 + 42 + 1 + 535 = 666.

It is not a de Polignac number, because 88421535 - 2⁴ = 88421519 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 88421535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88421537) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 13524 + ... + 18966.

It is an arithmetic number, because the mean of its divisors is an integer number (4494022).

Almost surely, 2^88421535 is an apocalyptic number.

88421535 is a deficient number, since it is larger than the sum of its proper divisors (73363257).

88421535 is a wasteful number, since it uses less digits than its factorization.

88421535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5492 (or 5470 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 88421535 is about 9403.2725686327. The cubic root of 88421535 is about 445.5051033512.

The spelling of 88421535 in words is "eighty-eight million, four hundred twenty-one thousand, five hundred thirty-five".