88971399 has 16 divisors (see below), whose sum is σ = 143792640. Its totient is φ = 53921880.

The previous prime is 88971397. The next prime is 88971403. The reversal of 88971399 is 99317988.

It is not a de Polignac number, because 88971399 - 2¹ = 88971397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88971397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149487 + ... + 150080.

It is an arithmetic number, because the mean of its divisors is an integer number (8987040).

Almost surely, 2^88971399 is an apocalyptic number.

88971399 is a deficient number, since it is larger than the sum of its proper divisors (54821241).

88971399 is a wasteful number, since it uses less digits than its factorization.

88971399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299587 (or 299581 counting only the distinct ones).

The product of its digits is 979776, while the sum is 54.

The square root of 88971399 is about 9432.4651602855. The cubic root of 88971399 is about 446.4266781518.

It can be divided in two parts, 8897 and 1399, that added together give a triangular number (10296 = T₁₄₃).

The spelling of 88971399 in words is "eighty-eight million, nine hundred seventy-one thousand, three hundred ninety-nine".