685022701 has 16 divisors (see below), whose sum is σ = 792486720. Its totient is φ = 585204480.

The previous prime is 685022677. The next prime is 685022707. The reversal of 685022701 is 107220586.

It is a cyclic number.

It is not a de Polignac number, because 685022701 - 2⁵ = 685022669 is a prime.

It is a super-2 number, since 2×685022701² = 938512201770670802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685022707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135715 + ... + 140671.

It is an arithmetic number, because the mean of its divisors is an integer number (49530420).

Almost surely, 2^685022701 is an apocalyptic number.

It is an amenable number.

685022701 is a deficient number, since it is larger than the sum of its proper divisors (107464019).

685022701 is a wasteful number, since it uses less digits than its factorization.

685022701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5724.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 685022701 is about 26172.9383333244. The cubic root of 685022701 is about 881.5257196978.

The spelling of 685022701 in words is "six hundred eighty-five million, twenty-two thousand, seven hundred one".