123867760 has 20 divisors (see below), whose sum is σ = 287992728. Its totient is φ = 49547072.

The previous prime is 123867743. The next prime is 123867773. The reversal of 123867760 is 67768321.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 774094 + ... + 774253.

Almost surely, 2^123867760 is an apocalyptic number.

123867760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123867760 is an abundant number, since it is smaller than the sum of its proper divisors (164124968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123867760 is a wasteful number, since it uses less digits than its factorization.

123867760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548360 (or 1548354 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 123867760 is about 11129.5893904492. The cubic root of 123867760 is about 498.4857654837.

The spelling of 123867760 in words is "one hundred twenty-three million, eight hundred sixty-seven thousand, seven hundred sixty".