128883469 has 16 divisors (see below), whose sum is σ = 155514240. Its totient is φ = 105226560.

The previous prime is 128883463. The next prime is 128883473. The reversal of 128883469 is 964388821.

It is a cyclic number.

It is not a de Polignac number, because 128883469 - 2¹¹ = 128881421 is a prime.

It is a super-2 number, since 2×128883469² = 33221897162947922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128883463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6889 + ... + 17470.

It is an arithmetic number, because the mean of its divisors is an integer number (9719640).

Almost surely, 2^128883469 is an apocalyptic number.

It is an amenable number.

128883469 is a deficient number, since it is larger than the sum of its proper divisors (26630771).

128883469 is a wasteful number, since it uses less digits than its factorization.

128883469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24420.

The product of its digits is 663552, while the sum is 49.

The square root of 128883469 is about 11352.6855413158. The cubic root of 128883469 is about 505.1252429292.

The spelling of 128883469 in words is "one hundred twenty-eight million, eight hundred eighty-three thousand, four hundred sixty-nine".