70565644 has 24 divisors (see below), whose sum is σ = 126282240. Its totient is φ = 34494096.

The previous prime is 70565629. The next prime is 70565647. The reversal of 70565644 is 44656507.

It is a happy number.

It is a super-4 number, since 4×70565644⁴ (a number of 32 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (70565647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32769 + ... + 34855.

It is an arithmetic number, because the mean of its divisors is an integer number (5261760).

Almost surely, 2^70565644 is an apocalyptic number.

It is an amenable number.

70565644 is a deficient number, since it is larger than the sum of its proper divisors (55716596).

70565644 is a wasteful number, since it uses less digits than its factorization.

70565644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2277 (or 2275 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 37.

The square root of 70565644 is about 8400.3359456631. The cubic root of 70565644 is about 413.2356391264.

The spelling of 70565644 in words is "seventy million, five hundred sixty-five thousand, six hundred forty-four".