70007872 has 56 divisors (see below), whose sum is σ = 152521920. Its totient is φ = 31618560.

The previous prime is 70007857. The next prime is 70007891. The reversal of 70007872 is 27870007.

It is a super-2 number, since 2×70007872² = 9802204283936768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194829 + ... + 195187.

Almost surely, 2^70007872 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 70007872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76260960).

70007872 is an abundant number, since it is smaller than the sum of its proper divisors (82514048).

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

70007872 is a wasteful number, since it uses less digits than its factorization.

70007872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659 (or 649 counting only the distinct ones).

The product of its (nonzero) digits is 5488, while the sum is 31.

The square root of 70007872 is about 8367.0706940960. The cubic root of 70007872 is about 412.1439783341.

Adding to 70007872 its reverse (27870007), we get a palindrome (97877879).

The spelling of 70007872 in words is "seventy million, seven thousand, eight hundred seventy-two".