70216312 has 16 divisors (see below), whose sum is σ = 131814360. Its totient is φ = 35065824.

The previous prime is 70216249. The next prime is 70216339. The reversal of 70216312 is 21361207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2418 + ... + 12094.

Almost surely, 2^70216312 is an apocalyptic number.

It is an amenable number.

70216312 is a deficient number, since it is larger than the sum of its proper divisors (61598048).

70216312 is a wasteful number, since it uses less digits than its factorization.

70216312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10590 (or 10586 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 70216312 is about 8379.5174085385. The cubic root of 70216312 is about 412.5526093904.

Adding to 70216312 its reverse (21361207), we get a palindrome (91577519).

The spelling of 70216312 in words is "seventy million, two hundred sixteen thousand, three hundred twelve".