70005655 has 8 divisors (see below), whose sum is σ = 86055984. Its totient is φ = 54638400.

The previous prime is 70005653. The next prime is 70005659. The reversal of 70005655 is 55650007.

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

It is not a de Polignac number, because 70005655 - 2¹ = 70005653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70005653) 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, 170541 + ... + 170950.

It is an arithmetic number, because the mean of its divisors is an integer number (10756998).

Almost surely, 2^70005655 is an apocalyptic number.

70005655 is a deficient number, since it is larger than the sum of its proper divisors (16050329).

70005655 is a wasteful number, since it uses less digits than its factorization.

70005655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341537.

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 70005655 is about 8366.9382094049. The cubic root of 70005655 is about 412.1396277146.

The spelling of 70005655 in words is "seventy million, five thousand, six hundred fifty-five".