72243927 has 32 divisors (see below), whose sum is σ = 125314560. Its totient is φ = 40271040.

The previous prime is 72243923. The next prime is 72243937. The reversal of 72243927 is 72934227.

It is not a de Polignac number, because 72243927 - 2² = 72243923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72243891 and 72243900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72243923) 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, 3088 + ... + 12410.

It is an arithmetic number, because the mean of its divisors is an integer number (3916080).

Almost surely, 2^72243927 is an apocalyptic number.

72243927 is a deficient number, since it is larger than the sum of its proper divisors (53070633).

72243927 is a wasteful number, since it uses less digits than its factorization.

72243927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9380 (or 9374 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 72243927 is about 8499.6427571987. The cubic root of 72243927 is about 416.4860393261.

The spelling of 72243927 in words is "seventy-two million, two hundred forty-three thousand, nine hundred twenty-seven".