70287216 has 40 divisors (see below), whose sum is σ = 183626640. Its totient is φ = 23164416.

The previous prime is 70287143. The next prime is 70287223. The reversal of 70287216 is 61278207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3955 + ... + 12498.

It is an arithmetic number, because the mean of its divisors is an integer number (4590666).

Almost surely, 2^70287216 is an apocalyptic number.

It is an amenable number.

70287216 is an abundant number, since it is smaller than the sum of its proper divisors (113339424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70287216 is a wasteful number, since it uses less digits than its factorization.

70287216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16553 (or 16547 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 70287216 is about 8383.7471335913. The cubic root of 70287216 is about 412.6914270377.

Subtracting from 70287216 its reverse (61278207), we obtain a palindrome (9009009).

The spelling of 70287216 in words is "seventy million, two hundred eighty-seven thousand, two hundred sixteen".