72790103 has 2 divisors, whose sum is σ = 72790104. Its totient is φ = 72790102.

The previous prime is 72790093. The next prime is 72790127. The reversal of 72790103 is 30109727.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (30109727) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72790103 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72790183) 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, 36395051 + 36395052.

It is an arithmetic number, because the mean of its divisors is an integer number (36395052).

Almost surely, 2^72790103 is an apocalyptic number.

72790103 is a deficient number, since it is larger than the sum of its proper divisors (1).

72790103 is an equidigital number, since it uses as much as digits as its factorization.

72790103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2646, while the sum is 29.

The square root of 72790103 is about 8531.7116102222. The cubic root of 72790103 is about 417.5329731210.

The spelling of 72790103 in words is "seventy-two million, seven hundred ninety thousand, one hundred three".