689177907 has 12 divisors (see below), whose sum is σ = 1085977464. Its totient is φ = 417683520.

The previous prime is 689177857. The next prime is 689177917. The reversal of 689177907 is 709771986.

It is not a de Polignac number, because 689177907 - 2¹⁰ = 689176883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (689177917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3480598 + ... + 3480795.

It is an arithmetic number, because the mean of its divisors is an integer number (90498122).

Almost surely, 2^689177907 is an apocalyptic number.

689177907 is a deficient number, since it is larger than the sum of its proper divisors (396799557).

689177907 is a wasteful number, since it uses less digits than its factorization.

689177907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6961410 (or 6961407 counting only the distinct ones).

The product of its (nonzero) digits is 1333584, while the sum is 54.

The square root of 689177907 is about 26252.1981365371. The cubic root of 689177907 is about 883.3045121564.

The spelling of 689177907 in words is "six hundred eighty-nine million, one hundred seventy-seven thousand, nine hundred seven".