123852789 has 12 divisors (see below), whose sum is σ = 179689536. Its totient is φ = 82203432.

The previous prime is 123852787. The next prime is 123852791. The reversal of 123852789 is 987258321.

It is a happy number.

123852789 is a `hidden beast` number, since 12 + 38 + 527 + 89 = 666.

It is an interprime number because it is at equal distance from previous prime (123852787) and next prime (123852791).

It is not a de Polignac number, because 123852789 - 2¹ = 123852787 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123852787) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28269 + ... + 32354.

It is an arithmetic number, because the mean of its divisors is an integer number (14974128).

Almost surely, 2^123852789 is an apocalyptic number.

It is an amenable number.

123852789 is a deficient number, since it is larger than the sum of its proper divisors (55836747).

123852789 is a wasteful number, since it uses less digits than its factorization.

123852789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60856 (or 60853 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 123852789 is about 11128.9167936507. The cubic root of 123852789 is about 498.4656818852.

The spelling of 123852789 in words is "one hundred twenty-three million, eight hundred fifty-two thousand, seven hundred eighty-nine".