4148789 has 4 divisors (see below), whose sum is σ = 4153740. Its totient is φ = 4143840.

The previous prime is 4148759. The next prime is 4148791. The reversal of 4148789 is 9878414.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2280100 + 1868689 = 1510^2 + 1367^2 .

It is a cyclic number.

It is not a de Polignac number, because 4148789 - 2¹⁶ = 4083253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4148719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 872 + ... + 3009.

It is an arithmetic number, because the mean of its divisors is an integer number (1038435).

Almost surely, 2^4148789 is an apocalyptic number.

It is an amenable number.

4148789 is a deficient number, since it is larger than the sum of its proper divisors (4951).

4148789 is a wasteful number, since it uses less digits than its factorization.

4148789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4950.

The product of its digits is 64512, while the sum is 41.

The square root of 4148789 is about 2036.8576287998. The cubic root of 4148789 is about 160.6844248625.

The spelling of 4148789 in words is "four million, one hundred forty-eight thousand, seven hundred eighty-nine".