680146734 has 16 divisors (see below), whose sum is σ = 1374318288. Its totient is φ = 224378112.

The previous prime is 680146703. The next prime is 680146759. The reversal of 680146734 is 437641086.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 680146692 and 680146701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 583737 + ... + 584900.

It is an arithmetic number, because the mean of its divisors is an integer number (85894893).

Almost surely, 2^680146734 is an apocalyptic number.

680146734 is an abundant number, since it is smaller than the sum of its proper divisors (694171554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

680146734 is a wasteful number, since it uses less digits than its factorization.

680146734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1168739.

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 680146734 is about 26079.6229650660. The cubic root of 680146734 is about 879.4291812949.

It can be divided in two parts, 6801 and 46734, that added together give a palindrome (53535).

The spelling of 680146734 in words is "six hundred eighty million, one hundred forty-six thousand, seven hundred thirty-four".