128624 has 10 divisors (see below), whose sum is σ = 249240. Its totient is φ = 64304.

The previous prime is 128621. The next prime is 128629. The reversal of 128624 is 426821.

It is a self number, because there is not a number n which added to its sum of digits gives 128624.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4004 + ... + 4035.

It is an arithmetic number, because the mean of its divisors is an integer number (24924).

2¹²⁸⁶²⁴ is an apocalyptic number.

It is an amenable number.

128624 is a deficient number, since it is larger than the sum of its proper divisors (120616).

128624 is an equidigital number, since it uses as much as digits as its factorization.

128624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8047 (or 8041 counting only the distinct ones).

The product of its digits is 768, while the sum is 23.

The square root of 128624 is about 358.6418826629. The cubic root of 128624 is about 50.4786041441.

The spelling of 128624 in words is "one hundred twenty-eight thousand, six hundred twenty-four".