70708947 has 4 divisors (see below), whose sum is σ = 94278600. Its totient is φ = 47139296.

The previous prime is 70708927. The next prime is 70708951. The reversal of 70708947 is 74980707.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70708947 - 2⁷ = 70708819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70708899 and 70708908.

It is not an unprimeable number, because it can be changed into a prime (70708907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11784822 + ... + 11784827.

It is an arithmetic number, because the mean of its divisors is an integer number (23569650).

Almost surely, 2^70708947 is an apocalyptic number.

70708947 is a deficient number, since it is larger than the sum of its proper divisors (23569653).

70708947 is a wasteful number, since it uses less digits than its factorization.

70708947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23569652.

The product of its (nonzero) digits is 98784, while the sum is 42.

The square root of 70708947 is about 8408.8612189761. The cubic root of 70708947 is about 413.5151796247.

The spelling of 70708947 in words is "seventy million, seven hundred eight thousand, nine hundred forty-seven".