787542361 has 2 divisors, whose sum is σ = 787542362. Its totient is φ = 787542360.

The previous prime is 787542341. The next prime is 787542397. The reversal of 787542361 is 163245787.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 787139136 + 403225 = 28056^2 + 635^2 .

It is an emirp because it is prime and its reverse (163245787) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-787542361 is a prime.

It is not a weakly prime, because it can be changed into another prime (787542341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 393771180 + 393771181.

It is an arithmetic number, because the mean of its divisors is an integer number (393771181).

Almost surely, 2^787542361 is an apocalyptic number.

It is an amenable number.

787542361 is a deficient number, since it is larger than the sum of its proper divisors (1).

787542361 is an equidigital number, since it uses as much as digits as its factorization.

787542361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 282240, while the sum is 43.

The square root of 787542361 is about 28063.1851542194. The cubic root of 787542361 is about 923.4739330552.

The spelling of 787542361 in words is "seven hundred eighty-seven million, five hundred forty-two thousand, three hundred sixty-one".