787969541 has 2 divisors, whose sum is σ = 787969542. Its totient is φ = 787969540.

The previous prime is 787969537. The next prime is 787969639. The reversal of 787969541 is 145969787.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 764301316 + 23668225 = 27646^2 + 4865^2 .

It is a cyclic number.

It is not a de Polignac number, because 787969541 - 2² = 787969537 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (787969531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 393984770 + 393984771.

It is an arithmetic number, because the mean of its divisors is an integer number (393984771).

Almost surely, 2^787969541 is an apocalyptic number.

It is an amenable number.

787969541 is a deficient number, since it is larger than the sum of its proper divisors (1).

787969541 is an equidigital number, since it uses as much as digits as its factorization.

787969541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3810240, while the sum is 56.

The square root of 787969541 is about 28070.7951615197. The cubic root of 787969541 is about 923.6408736158.

The spelling of 787969541 in words is "seven hundred eighty-seven million, nine hundred sixty-nine thousand, five hundred forty-one".