680648422 has 4 divisors (see below), whose sum is σ = 1020972636. Its totient is φ = 340324210.

The previous prime is 680648401. The next prime is 680648443. The reversal of 680648422 is 224846086.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (680648401) and next prime (680648443).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170162104 + ... + 170162107.

It is an arithmetic number, because the mean of its divisors is an integer number (255243159).

Almost surely, 2^680648422 is an apocalyptic number.

680648422 is a deficient number, since it is larger than the sum of its proper divisors (340324214).

680648422 is a wasteful number, since it uses less digits than its factorization.

680648422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340324213.

The product of its (nonzero) digits is 147456, while the sum is 40.

The square root of 680648422 is about 26089.2395826325. The cubic root of 680648422 is about 879.6453555461.

The spelling of 680648422 in words is "six hundred eighty million, six hundred forty-eight thousand, four hundred twenty-two".