773827989 has 16 divisors (see below), whose sum is σ = 1139819520. Its totient is φ = 463048560.

The previous prime is 773827949. The next prime is 773828021. The reversal of 773827989 is 989728377.

It is not a de Polignac number, because 773827989 - 2¹⁵ = 773795221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (773827949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145807 + ... + 151020.

It is an arithmetic number, because the mean of its divisors is an integer number (71238720).

Almost surely, 2^773827989 is an apocalyptic number.

773827989 is a gapful number since it is divisible by the number (79) formed by its first and last digit.

It is an amenable number.

773827989 is a deficient number, since it is larger than the sum of its proper divisors (365991531).

773827989 is a wasteful number, since it uses less digits than its factorization.

773827989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296920.

The product of its digits is 10668672, while the sum is 60.

The square root of 773827989 is about 27817.7639108538. The cubic root of 773827989 is about 918.0820112225.

The spelling of 773827989 in words is "seven hundred seventy-three million, eight hundred twenty-seven thousand, nine hundred eighty-nine".