72393103 has 2 divisors, whose sum is σ = 72393104. Its totient is φ = 72393102.

The previous prime is 72393049. The next prime is 72393107. The reversal of 72393103 is 30139327.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72393103 - 2²⁵ = 38838671 is a prime.

It is a super-2 number, since 2×72393103² = 10481522723937218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72393107) by changing a digit.

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 as a sum of consecutive naturals, namely, 36196551 + 36196552.

It is an arithmetic number, because the mean of its divisors is an integer number (36196552).

Almost surely, 2^72393103 is an apocalyptic number.

72393103 is a deficient number, since it is larger than the sum of its proper divisors (1).

72393103 is an equidigital number, since it uses as much as digits as its factorization.

72393103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402, while the sum is 28.

The square root of 72393103 is about 8508.4136594315. The cubic root of 72393103 is about 416.7725086494.

The spelling of 72393103 in words is "seventy-two million, three hundred ninety-three thousand, one hundred three".