70952857 has 4 divisors (see below), whose sum is σ = 70977060. Its totient is φ = 70928656.

The previous prime is 70952851. The next prime is 70952867. The reversal of 70952857 is 75825907.

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

It can be written as a sum of positive squares in 2 ways, for example, as 64979721 + 5973136 = 8061^2 + 2444^2 .

It is a cyclic number.

It is not a de Polignac number, because 70952857 - 2¹⁵ = 70920089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70952851) 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, 6982 + ... + 13807.

It is an arithmetic number, because the mean of its divisors is an integer number (17744265).

Almost surely, 2^70952857 is an apocalyptic number.

It is an amenable number.

70952857 is a deficient number, since it is larger than the sum of its proper divisors (24203).

70952857 is a wasteful number, since it uses less digits than its factorization.

70952857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24202.

The product of its (nonzero) digits is 176400, while the sum is 43.

The square root of 70952857 is about 8423.3518862743. The cubic root of 70952857 is about 413.9901064950.

The spelling of 70952857 in words is "seventy million, nine hundred fifty-two thousand, eight hundred fifty-seven".