128863662 has 32 divisors (see below), whose sum is σ = 271814400. Its totient is φ = 40615488.

The previous prime is 128863661. The next prime is 128863663. The reversal of 128863662 is 266368821.

It is an interprime number because it is at equal distance from previous prime (128863661) and next prime (128863663).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128863661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97039 + ... + 98357.

It is an arithmetic number, because the mean of its divisors is an integer number (8494200).

Almost surely, 2^128863662 is an apocalyptic number.

128863662 is an abundant number, since it is smaller than the sum of its proper divisors (142950738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128863662 is a wasteful number, since it uses less digits than its factorization.

128863662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2200.

The product of its digits is 165888, while the sum is 42.

The square root of 128863662 is about 11351.8131591389. The cubic root of 128863662 is about 505.0993654748.

The spelling of 128863662 in words is "one hundred twenty-eight million, eight hundred sixty-three thousand, six hundred sixty-two".