787132469 has 2 divisors, whose sum is σ = 787132470. Its totient is φ = 787132468.

The previous prime is 787132441. The next prime is 787132543. The reversal of 787132469 is 964231787.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 548028100 + 239104369 = 23410^2 + 15463^2 .

It is an emirp because it is prime and its reverse (964231787) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-787132469 is a prime.

It is a super-2 number, since 2×787132469² = 1239155047508071922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (787132069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 393566234 + 393566235.

It is an arithmetic number, because the mean of its divisors is an integer number (393566235).

Almost surely, 2^787132469 is an apocalyptic number.

It is an amenable number.

787132469 is a deficient number, since it is larger than the sum of its proper divisors (1).

787132469 is an equidigital number, since it uses as much as digits as its factorization.

787132469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 508032, while the sum is 47.

The square root of 787132469 is about 28055.8811838089. The cubic root of 787132469 is about 923.3136918266.

The spelling of 787132469 in words is "seven hundred eighty-seven million, one hundred thirty-two thousand, four hundred sixty-nine".