72919703 has 2 divisors, whose sum is σ = 72919704. Its totient is φ = 72919702.

The previous prime is 72919687. The next prime is 72919741. The reversal of 72919703 is 30791927.

It is an a-pointer prime, because the next prime (72919741) can be obtained adding 72919703 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72919703 - 2⁴ = 72919687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72919793) 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, 36459851 + 36459852.

It is an arithmetic number, because the mean of its divisors is an integer number (36459852).

Almost surely, 2^72919703 is an apocalyptic number.

72919703 is a deficient number, since it is larger than the sum of its proper divisors (1).

72919703 is an equidigital number, since it uses as much as digits as its factorization.

72919703 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23814, while the sum is 38.

The square root of 72919703 is about 8539.3034259242. The cubic root of 72919703 is about 417.7806267070.

The spelling of 72919703 in words is "seventy-two million, nine hundred nineteen thousand, seven hundred three".