787668260 has 24 divisors (see below), whose sum is σ = 1658245176. Its totient is φ = 314278400.

The previous prime is 787668241. The next prime is 787668269. The reversal of 787668260 is 62866787.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 360088576 + 427579684 = 18976^2 + 20678^2 .

It is a super-2 number, since 2×787668260² = 1240842575622855200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 787668199 and 787668208.

It is not an unprimeable number, because it can be changed into a prime (787668269) 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 in 7 ways as a sum of consecutive naturals, for example, 41087 + ... + 57126.

It is an arithmetic number, because the mean of its divisors is an integer number (69093549).

Almost surely, 2^787668260 is an apocalyptic number.

It is an amenable number.

787668260 is an abundant number, since it is smaller than the sum of its proper divisors (870576916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

787668260 is a wasteful number, since it uses less digits than its factorization.

787668260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98623 (or 98621 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 50.

The square root of 787668260 is about 28065.4281991207. The cubic root of 787668260 is about 923.5231402495.

The spelling of 787668260 in words is "seven hundred eighty-seven million, six hundred sixty-eight thousand, two hundred sixty".