75887249 has 2 divisors, whose sum is σ = 75887250. Its totient is φ = 75887248.

The previous prime is 75887239. The next prime is 75887261. The reversal of 75887249 is 94278857.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75777025 + 110224 = 8705^2 + 332^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75887249 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 75887197 and 75887206.

It is not a weakly prime, because it can be changed into another prime (75887219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37943624 + 37943625.

It is an arithmetic number, because the mean of its divisors is an integer number (37943625).

Almost surely, 2^75887249 is an apocalyptic number.

It is an amenable number.

75887249 is a deficient number, since it is larger than the sum of its proper divisors (1).

75887249 is an equidigital number, since it uses as much as digits as its factorization.

75887249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1128960, while the sum is 50.

The square root of 75887249 is about 8711.3287734995. The cubic root of 75887249 is about 423.3727839868.

The spelling of 75887249 in words is "seventy-five million, eight hundred eighty-seven thousand, two hundred forty-nine".