70644443 has 8 divisors (see below), whose sum is σ = 73251840. Its totient is φ = 68057640.

The previous prime is 70644347. The next prime is 70644467. The reversal of 70644443 is 34444607.

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 70644443 - 2²⁶ = 3535579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70644473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2018 + ... + 12056.

It is an arithmetic number, because the mean of its divisors is an integer number (9156480).

Almost surely, 2^70644443 is an apocalyptic number.

70644443 is a deficient number, since it is larger than the sum of its proper divisors (2607397).

70644443 is a wasteful number, since it uses less digits than its factorization.

70644443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10297.

The product of its (nonzero) digits is 32256, while the sum is 32.

The square root of 70644443 is about 8405.0248661143. The cubic root of 70644443 is about 413.3893987568.

The spelling of 70644443 in words is "seventy million, six hundred forty-four thousand, four hundred forty-three".