123247672 has 8 divisors (see below), whose sum is σ = 231089400. Its totient is φ = 61623832.

The previous prime is 123247667. The next prime is 123247673. The reversal of 123247672 is 276742321.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123247673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7702972 + ... + 7702987.

It is an arithmetic number, because the mean of its divisors is an integer number (28886175).

Almost surely, 2^123247672 is an apocalyptic number.

It is an amenable number.

123247672 is a deficient number, since it is larger than the sum of its proper divisors (107841728).

123247672 is a wasteful number, since it uses less digits than its factorization.

123247672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15405965 (or 15405961 counting only the distinct ones).

The product of its digits is 28224, while the sum is 34.

The square root of 123247672 is about 11101.6968072453. The cubic root of 123247672 is about 497.6525589551.

Adding to 123247672 its reverse (276742321), we get a palindrome (399989993).

The spelling of 123247672 in words is "one hundred twenty-three million, two hundred forty-seven thousand, six hundred seventy-two".