70000772 has 6 divisors (see below), whose sum is σ = 122501358. Its totient is φ = 35000384.

The previous prime is 70000771. The next prime is 70000783. The reversal of 70000772 is 27700007.

It can be written as a sum of positive squares in only one way, i.e., 69989956 + 10816 = 8366^2 + 104^2 .

It is not an unprimeable number, because it can be changed into a prime (70000771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8750093 + ... + 8750100.

It is an arithmetic number, because the mean of its divisors is an integer number (20416893).

Almost surely, 2^70000772 is an apocalyptic number.

It is an amenable number.

70000772 is a deficient number, since it is larger than the sum of its proper divisors (52500586).

70000772 is a wasteful number, since it uses less digits than its factorization.

70000772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17500197 (or 17500195 counting only the distinct ones).

The product of its (nonzero) digits is 686, while the sum is 23.

The square root of 70000772 is about 8366.6464010379. The cubic root of 70000772 is about 412.1300450383.

Adding to 70000772 its reverse (27700007), we get a palindrome (97700779).

The spelling of 70000772 in words is "seventy million, seven hundred seventy-two", and thus it is an aban number.