70772709 has 12 divisors (see below), whose sum is σ = 109770144. Its totient is φ = 40441464.

The previous prime is 70772707. The next prime is 70772747. The reversal of 70772709 is 90727707.

It is not a de Polignac number, because 70772709 - 2¹ = 70772707 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70772707) 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 11 ways as a sum of consecutive naturals, for example, 240577 + ... + 240870.

It is an arithmetic number, because the mean of its divisors is an integer number (9147512).

Almost surely, 2^70772709 is an apocalyptic number.

It is an amenable number.

70772709 is a deficient number, since it is larger than the sum of its proper divisors (38997435).

70772709 is a wasteful number, since it uses less digits than its factorization.

70772709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481464 (or 481457 counting only the distinct ones).

The product of its (nonzero) digits is 43218, while the sum is 39.

The square root of 70772709 is about 8412.6517222574. The cubic root of 70772709 is about 413.6394384566.

The spelling of 70772709 in words is "seventy million, seven hundred seventy-two thousand, seven hundred nine".