72495277 has 2 divisors, whose sum is σ = 72495278. Its totient is φ = 72495276.

The previous prime is 72495233. The next prime is 72495301. The reversal of 72495277 is 77259427.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49970761 + 22524516 = 7069^2 + 4746^2 .

It is a cyclic number.

It is not a de Polignac number, because 72495277 - 2¹⁹ = 71970989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72495677) 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, 36247638 + 36247639.

It is an arithmetic number, because the mean of its divisors is an integer number (36247639).

Almost surely, 2^72495277 is an apocalyptic number.

It is an amenable number.

72495277 is a deficient number, since it is larger than the sum of its proper divisors (1).

72495277 is an equidigital number, since it uses as much as digits as its factorization.

72495277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 246960, while the sum is 43.

The square root of 72495277 is about 8514.4158343365. The cubic root of 72495277 is about 416.9684909301.

The spelling of 72495277 in words is "seventy-two million, four hundred ninety-five thousand, two hundred seventy-seven".