787884949 has 2 divisors, whose sum is σ = 787884950. Its totient is φ = 787884948.

The previous prime is 787884917. The next prime is 787884961. The reversal of 787884949 is 949488787.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 758616849 + 29268100 = 27543^2 + 5410^2 .

It is a cyclic number.

It is not a de Polignac number, because 787884949 - 2⁵ = 787884917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (787884749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 393942474 + 393942475.

It is an arithmetic number, because the mean of its divisors is an integer number (393942475).

Almost surely, 2^787884949 is an apocalyptic number.

It is an amenable number.

787884949 is a deficient number, since it is larger than the sum of its proper divisors (1).

787884949 is an equidigital number, since it uses as much as digits as its factorization.

787884949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32514048, while the sum is 64.

The square root of 787884949 is about 28069.2883593439. The cubic root of 787884949 is about 923.6078201280.

The spelling of 787884949 in words is "seven hundred eighty-seven million, eight hundred eighty-four thousand, nine hundred forty-nine".