688049067 has 16 divisors (see below), whose sum is σ = 931219200. Its totient is φ = 451836000.

The previous prime is 688049059. The next prime is 688049081. The reversal of 688049067 is 760940886.

It is not a de Polignac number, because 688049067 - 2³ = 688049059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (688049057) 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, 54592 + ... + 66002.

It is an arithmetic number, because the mean of its divisors is an integer number (58201200).

Almost surely, 2^688049067 is an apocalyptic number.

688049067 is a deficient number, since it is larger than the sum of its proper divisors (243170133).

688049067 is a wasteful number, since it uses less digits than its factorization.

688049067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11714.

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 688049067 is about 26230.6894114509. The cubic root of 688049067 is about 882.8219786156.

The spelling of 688049067 in words is "six hundred eighty-eight million, forty-nine thousand, sixty-seven".