70221727 has 8 divisors (see below), whose sum is σ = 72857600. Its totient is φ = 67609080.

The previous prime is 70221721. The next prime is 70221743. The reversal of 70221727 is 72712207.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70221727 - 2³ = 70221719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70221695 and 70221704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70221721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 478 + ... + 11860.

It is an arithmetic number, because the mean of its divisors is an integer number (9107200).

Almost surely, 2^70221727 is an apocalyptic number.

70221727 is a deficient number, since it is larger than the sum of its proper divisors (2635873).

70221727 is a wasteful number, since it uses less digits than its factorization.

70221727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11613.

The product of its (nonzero) digits is 2744, while the sum is 28.

The square root of 70221727 is about 8379.8405116088. The cubic root of 70221727 is about 412.5632143097.

It can be divided in two parts, 702217 and 27, that added together give a square (702244 = 838²).

The spelling of 70221727 in words is "seventy million, two hundred twenty-one thousand, seven hundred twenty-seven".