70078216 has 48 divisors (see below), whose sum is σ = 150700500. Its totient is φ = 30431232.

The previous prime is 70078163. The next prime is 70078231. The reversal of 70078216 is 61287007.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 6812100 + 63266116 = 2610^2 + 7954^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21460 + ... + 24508.

Almost surely, 2^70078216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70078216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75350250).

70078216 is an abundant number, since it is smaller than the sum of its proper divisors (80622284).

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

70078216 is a wasteful number, since it uses less digits than its factorization.

70078216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3098 (or 3081 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 70078216 is about 8371.2732603828. The cubic root of 70078216 is about 412.2819730588.

The spelling of 70078216 in words is "seventy million, seventy-eight thousand, two hundred sixteen".