72260497 has 2 divisors, whose sum is σ = 72260498. Its totient is φ = 72260496.

The previous prime is 72260483. The next prime is 72260509. The reversal of 72260497 is 79406227.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61606801 + 10653696 = 7849^2 + 3264^2 .

It is a cyclic number.

It is not a de Polignac number, because 72260497 - 2⁷ = 72260369 is a prime.

It is not a weakly prime, because it can be changed into another prime (72266497) 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, 36130248 + 36130249.

It is an arithmetic number, because the mean of its divisors is an integer number (36130249).

Almost surely, 2^72260497 is an apocalyptic number.

It is an amenable number.

72260497 is a deficient number, since it is larger than the sum of its proper divisors (1).

72260497 is an equidigital number, since it uses as much as digits as its factorization.

72260497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 72260497 is about 8500.6174481622. The cubic root of 72260497 is about 416.5178788934.

The spelling of 72260497 in words is "seventy-two million, two hundred sixty thousand, four hundred ninety-seven".