70636285 has 4 divisors (see below), whose sum is σ = 84763548. Its totient is φ = 56509024.

The previous prime is 70636283. The next prime is 70636303. The reversal of 70636285 is 58263607.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58263607 = 17 ⋅3427271.

It can be written as a sum of positive squares in 2 ways, for example, as 48149721 + 22486564 = 6939^2 + 4742^2 .

It is a cyclic number.

It is not a de Polignac number, because 70636285 - 2¹ = 70636283 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 (70636283) 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, 7063624 + ... + 7063633.

It is an arithmetic number, because the mean of its divisors is an integer number (21190887).

Almost surely, 2^70636285 is an apocalyptic number.

It is an amenable number.

70636285 is a deficient number, since it is larger than the sum of its proper divisors (14127263).

70636285 is a wasteful number, since it uses less digits than its factorization.

70636285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14127262.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 70636285 is about 8404.5395471733. The cubic root of 70636285 is about 413.3734854479.

The spelling of 70636285 in words is "seventy million, six hundred thirty-six thousand, two hundred eighty-five".