787346663 has 4 divisors (see below), whose sum is σ = 787404288. Its totient is φ = 787289040.

The previous prime is 787346647. The next prime is 787346731. The reversal of 787346663 is 366643787.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 366643787 = 71 ⋅5163997.

It is a cyclic number.

It is not a de Polignac number, because 787346663 - 2⁴ = 787346647 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 (787346633) 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, 4595 + ... + 39947.

It is an arithmetic number, because the mean of its divisors is an integer number (196851072).

Almost surely, 2^787346663 is an apocalyptic number.

787346663 is a deficient number, since it is larger than the sum of its proper divisors (57625).

787346663 is a wasteful number, since it uses less digits than its factorization.

787346663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57624.

The product of its digits is 3048192, while the sum is 50.

The square root of 787346663 is about 28059.6981986621. The cubic root of 787346663 is about 923.3974347477.

The spelling of 787346663 in words is "seven hundred eighty-seven million, three hundred forty-six thousand, six hundred sixty-three".