786897 has 6 divisors (see below), whose sum is σ = 1136642. Its totient is φ = 524592.

The previous prime is 786889. The next prime is 786901. The reversal of 786897 is 798687.

It can be written as a sum of positive squares in only one way, i.e., 746496 + 40401 = 864^2 + 201^2 .

It is not a de Polignac number, because 786897 - 2³ = 786889 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (786887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43708 + ... + 43725.

2⁷⁸⁶⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

786897 is a deficient number, since it is larger than the sum of its proper divisors (349745).

786897 is a wasteful number, since it uses less digits than its factorization.

786897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87439 (or 87436 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The square root of 786897 is about 887.0721503914. The cubic root of 786897 is about 92.3221613537.

The spelling of 786897 in words is "seven hundred eighty-six thousand, eight hundred ninety-seven".