787668271 has 6 divisors (see below), whose sum is σ = 852919080. Its totient is φ = 727078248.

The previous prime is 787668269. The next prime is 787668289. The reversal of 787668271 is 172866787.

It is not a de Polignac number, because 787668271 - 2¹ = 787668269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (787668241) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2330211 + ... + 2330548.

It is an arithmetic number, because the mean of its divisors is an integer number (142153180).

Almost surely, 2^787668271 is an apocalyptic number.

787668271 is a deficient number, since it is larger than the sum of its proper divisors (65250809).

787668271 is a wasteful number, since it uses less digits than its factorization.

787668271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4660785 (or 4660772 counting only the distinct ones).

The product of its digits is 1580544, while the sum is 52.

The square root of 787668271 is about 28065.4283950914. The cubic root of 787668271 is about 923.5231445485.

The spelling of 787668271 in words is "seven hundred eighty-seven million, six hundred sixty-eight thousand, two hundred seventy-one".