70321896 has 48 divisors (see below), whose sum is σ = 192437700. Its totient is φ = 23196672.

The previous prime is 70321873. The next prime is 70321903. The reversal of 70321896 is 69812307.

It can be written as a sum of positive squares in 2 ways, for example, as 68657796 + 1664100 = 8286^2 + 1290^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 70321896.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1950 + ... + 12018.

Almost surely, 2^70321896 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 70321896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96218850).

70321896 is an abundant number, since it is smaller than the sum of its proper divisors (122115804).

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

70321896 is a wasteful number, since it uses less digits than its factorization.

70321896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10178 (or 10171 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 70321896 is about 8385.8151661004. The cubic root of 70321896 is about 412.7592904239.

It can be divided in two parts, 70321 and 896, that added together give a palindrome (71217).

The spelling of 70321896 in words is "seventy million, three hundred twenty-one thousand, eight hundred ninety-six".