88720071 has 8 divisors (see below), whose sum is σ = 129047424. Its totient is φ = 53769720.

The previous prime is 88720069. The next prime is 88720087. The reversal of 88720071 is 17002788.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 88720071 - 2¹ = 88720069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 2688487 = 88720071 / (8 + 8 + 7 + 2 + 0 + 0 + 7 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88720001) 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 7 ways as a sum of consecutive naturals, for example, 1344211 + ... + 1344276.

It is an arithmetic number, because the mean of its divisors is an integer number (16130928).

Almost surely, 2^88720071 is an apocalyptic number.

88720071 is a deficient number, since it is larger than the sum of its proper divisors (40327353).

88720071 is a wasteful number, since it uses less digits than its factorization.

88720071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2688501.

The product of its (nonzero) digits is 6272, while the sum is 33.

The square root of 88720071 is about 9419.1332403783. The cubic root of 88720071 is about 446.0059236948.

The spelling of 88720071 in words is "eighty-eight million, seven hundred twenty thousand, seventy-one".