70844665 has 8 divisors (see below), whose sum is σ = 85143240. Its totient is φ = 56589312.

The previous prime is 70844563. The next prime is 70844671. The reversal of 70844665 is 56644807.

It can be written as a sum of positive squares in 4 ways, for example, as 29474041 + 41370624 = 5429^2 + 6432^2 .

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 70844665 - 2²⁵ = 37290233 is a prime.

It is a super-3 number, since 3×70844665³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7080 + ... + 13849.

It is an arithmetic number, because the mean of its divisors is an integer number (10642905).

Almost surely, 2^70844665 is an apocalyptic number.

It is an amenable number.

70844665 is a deficient number, since it is larger than the sum of its proper divisors (14298575).

70844665 is a wasteful number, since it uses less digits than its factorization.

70844665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21611.

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 70844665 is about 8416.9272896943. The cubic root of 70844665 is about 413.7795760812.

The spelling of 70844665 in words is "seventy million, eight hundred forty-four thousand, six hundred sixty-five".