128629467 has 6 divisors (see below), whose sum is σ = 185798132. Its totient is φ = 85752972.

The previous prime is 128629453. The next prime is 128629477. The reversal of 128629467 is 764926821.

It is a happy number.

128629467 is a `hidden beast` number, since 12 + 8 + 629 + 4 + 6 + 7 = 666.

It is not a de Polignac number, because 128629467 - 2⁴ = 128629451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128629477) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7146073 + ... + 7146090.

Almost surely, 2^128629467 is an apocalyptic number.

128629467 is a deficient number, since it is larger than the sum of its proper divisors (57168665).

128629467 is a wasteful number, since it uses less digits than its factorization.

128629467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14292169 (or 14292166 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 128629467 is about 11341.4931556652. The cubic root of 128629467 is about 504.7931931035.

The spelling of 128629467 in words is "one hundred twenty-eight million, six hundred twenty-nine thousand, four hundred sixty-seven".