689195404 has 24 divisors (see below), whose sum is σ = 1261810368. Its totient is φ = 329036160.

The previous prime is 689195387. The next prime is 689195407. The reversal of 689195404 is 404591986.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (689195407) 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 7 ways as a sum of consecutive naturals, for example, 36999 + ... + 52414.

It is an arithmetic number, because the mean of its divisors is an integer number (52575432).

Almost surely, 2^689195404 is an apocalyptic number.

It is an amenable number.

689195404 is a deficient number, since it is larger than the sum of its proper divisors (572614964).

689195404 is a wasteful number, since it uses less digits than its factorization.

689195404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89505 (or 89503 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 46.

The square root of 689195404 is about 26252.5313827067. The cubic root of 689195404 is about 883.3119872695.

The spelling of 689195404 in words is "six hundred eighty-nine million, one hundred ninety-five thousand, four hundred four".