88861439 has 4 divisors (see below), whose sum is σ = 88882656. Its totient is φ = 88840224.

The previous prime is 88861433. The next prime is 88861447. The reversal of 88861439 is 93416888.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 88861439 - 2⁸ = 88861183 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 88861393 and 88861402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88861433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1994 + ... + 13479.

It is an arithmetic number, because the mean of its divisors is an integer number (22220664).

Almost surely, 2^88861439 is an apocalyptic number.

88861439 is a deficient number, since it is larger than the sum of its proper divisors (21217).

88861439 is a wasteful number, since it uses less digits than its factorization.

88861439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21216.

The product of its digits is 331776, while the sum is 47.

The square root of 88861439 is about 9426.6345532221. The cubic root of 88861439 is about 446.2426890082.

The spelling of 88861439 in words is "eighty-eight million, eight hundred sixty-one thousand, four hundred thirty-nine".