70857485 has 4 divisors (see below), whose sum is σ = 85028988. Its totient is φ = 56685984.

The previous prime is 70857481. The next prime is 70857487. The reversal of 70857485 is 58475807.

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 12823561 + 58033924 = 3581^2 + 7618^2 .

It is a cyclic number.

It is not a de Polignac number, because 70857485 - 2² = 70857481 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70857481) 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, 7085744 + ... + 7085753.

It is an arithmetic number, because the mean of its divisors is an integer number (21257247).

Almost surely, 2^70857485 is an apocalyptic number.

It is an amenable number.

70857485 is a deficient number, since it is larger than the sum of its proper divisors (14171503).

70857485 is a wasteful number, since it uses less digits than its factorization.

70857485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14171502.

The product of its (nonzero) digits is 313600, while the sum is 44.

The square root of 70857485 is about 8417.6888158211. The cubic root of 70857485 is about 413.8045336614.

The spelling of 70857485 in words is "seventy million, eight hundred fifty-seven thousand, four hundred eighty-five".