70670305 has 8 divisors (see below), whose sum is σ = 85143744. Its totient is φ = 56310000.

The previous prime is 70670287. The next prime is 70670311. The reversal of 70670305 is 50307607.

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

It is a de Polignac number, because none of the positive numbers 2^k-70670305 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26901 + ... + 29410.

It is an arithmetic number, because the mean of its divisors is an integer number (10642968).

Almost surely, 2^70670305 is an apocalyptic number.

It is an amenable number.

70670305 is a deficient number, since it is larger than the sum of its proper divisors (14473439).

70670305 is a wasteful number, since it uses less digits than its factorization.

70670305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56567.

The product of its (nonzero) digits is 4410, while the sum is 28.

The square root of 70670305 is about 8406.5632097784. The cubic root of 70670305 is about 413.4398380734.

The spelling of 70670305 in words is "seventy million, six hundred seventy thousand, three hundred five".