88128457 has 8 divisors (see below), whose sum is σ = 90416480. Its totient is φ = 85851360.

The previous prime is 88128451. The next prime is 88128461. The reversal of 88128457 is 75482188.

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

It is a cyclic number.

It is not a de Polignac number, because 88128457 - 2¹⁹ = 87604169 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88128451) 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, 15082 + ... + 20092.

It is an arithmetic number, because the mean of its divisors is an integer number (11302060).

Almost surely, 2^88128457 is an apocalyptic number.

It is an amenable number.

88128457 is a deficient number, since it is larger than the sum of its proper divisors (2288023).

88128457 is a wasteful number, since it uses less digits than its factorization.

88128457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5463.

The product of its digits is 143360, while the sum is 43.

The square root of 88128457 is about 9387.6758039464. The cubic root of 88128457 is about 445.0123415337.

The spelling of 88128457 in words is "eighty-eight million, one hundred twenty-eight thousand, four hundred fifty-seven".