70680685 has 16 divisors (see below), whose sum is σ = 88743600. Its totient is φ = 53971456.

The previous prime is 70680677. The next prime is 70680697. The reversal of 70680685 is 58608607.

It can be written as a sum of positive squares in 8 ways, for example, as 1674436 + 69006249 = 1294^2 + 8307^2 .

It is a cyclic number.

It is not a de Polignac number, because 70680685 - 2³ = 70680677 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10167 + ... + 15643.

It is an arithmetic number, because the mean of its divisors is an integer number (5546475).

Almost surely, 2^70680685 is an apocalyptic number.

It is an amenable number.

70680685 is a deficient number, since it is larger than the sum of its proper divisors (18062915).

70680685 is a wasteful number, since it uses less digits than its factorization.

70680685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5600.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 70680685 is about 8407.1805618769. The cubic root of 70680685 is about 413.4600789908.

The spelling of 70680685 in words is "seventy million, six hundred eighty thousand, six hundred eighty-five".