766412287 has 4 divisors (see below), whose sum is σ = 791135296. Its totient is φ = 741689280.

The previous prime is 766412281. The next prime is 766412333. The reversal of 766412287 is 782214667.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-766412287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766412281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12361458 + ... + 12361519.

It is an arithmetic number, because the mean of its divisors is an integer number (197783824).

Almost surely, 2^766412287 is an apocalyptic number.

766412287 is a deficient number, since it is larger than the sum of its proper divisors (24723009).

766412287 is a wasteful number, since it uses less digits than its factorization.

766412287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24723008.

The product of its digits is 225792, while the sum is 43.

The square root of 766412287 is about 27684.1522716517. The cubic root of 766412287 is about 915.1398900255.

The spelling of 766412287 in words is "seven hundred sixty-six million, four hundred twelve thousand, two hundred eighty-seven".