68570306 has 12 divisors (see below), whose sum is σ = 119648358. Its totient is φ = 29387232.

The previous prime is 68570273. The next prime is 68570329. The reversal of 68570306 is 60307586.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 67650625 + 919681 = 8225^2 + 959^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 349751 + ... + 349946.

Almost surely, 2^68570306 is an apocalyptic number.

68570306 is a deficient number, since it is larger than the sum of its proper divisors (51078052).

68570306 is a wasteful number, since it uses less digits than its factorization.

68570306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699713 (or 699706 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 68570306 is about 8280.7189301413. The cubic root of 68570306 is about 409.3034096672.

The spelling of 68570306 in words is "sixty-eight million, five hundred seventy thousand, three hundred six".