72414427 has 2 divisors, whose sum is σ = 72414428. Its totient is φ = 72414426.

The previous prime is 72414401. The next prime is 72414437. The reversal of 72414427 is 72441427.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72414427 - 2¹⁹ = 71890139 is a prime.

It is not a weakly prime, because it can be changed into another prime (72414437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36207213 + 36207214.

It is an arithmetic number, because the mean of its divisors is an integer number (36207214).

Almost surely, 2^72414427 is an apocalyptic number.

72414427 is a deficient number, since it is larger than the sum of its proper divisors (1).

72414427 is an equidigital number, since it uses as much as digits as its factorization.

72414427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12544, while the sum is 31.

The square root of 72414427 is about 8509.6666797237. Note that the first 4 decimals coincide. The cubic root of 72414427 is about 416.8134259198.

Subtracting 72414427 from its reverse (72441427), we obtain a cube (27000 = 30³).

It can be divided in two parts, 724 and 14427, that added together give a palindrome (15151).

The spelling of 72414427 in words is "seventy-two million, four hundred fourteen thousand, four hundred twenty-seven".