769891 has 4 divisors (see below), whose sum is σ = 783000. Its totient is φ = 756784.

The previous prime is 769871. The next prime is 769903. The reversal of 769891 is 198967.

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

It is a cyclic number.

It is not a de Polignac number, because 769891 - 2¹¹ = 767843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (769871) 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, 6466 + ... + 6583.

It is an arithmetic number, because the mean of its divisors is an integer number (195750).

2⁷⁶⁹⁸⁹¹ is an apocalyptic number.

769891 is a deficient number, since it is larger than the sum of its proper divisors (13109).

769891 is a wasteful number, since it uses less digits than its factorization.

769891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13108.

The product of its digits is 27216, while the sum is 40.

The square root of 769891 is about 877.4343280269. The cubic root of 769891 is about 91.6522394191.

The spelling of 769891 in words is "seven hundred sixty-nine thousand, eight hundred ninety-one".