123428767 has 32 divisors (see below), whose sum is σ = 158630400. Its totient is φ = 93264000.

The previous prime is 123428761. The next prime is 123428771. The reversal of 123428767 is 767824321.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123428767 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 (123428761) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 458709 + ... + 458977.

It is an arithmetic number, because the mean of its divisors is an integer number (4957200).

Almost surely, 2^123428767 is an apocalyptic number.

123428767 is a deficient number, since it is larger than the sum of its proper divisors (35201633).

123428767 is a wasteful number, since it uses less digits than its factorization.

123428767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447.

The product of its digits is 112896, while the sum is 40.

The square root of 123428767 is about 11109.8499989874. The cubic root of 123428767 is about 497.8961829901.

The spelling of 123428767 in words is "one hundred twenty-three million, four hundred twenty-eight thousand, seven hundred sixty-seven".