70347472 has 80 divisors (see below), whose sum is σ = 153771408. Its totient is φ = 30965760.

The previous prime is 70347449. The next prime is 70347517. The reversal of 70347472 is 27474307.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 34058896 + 36288576 = 5836^2 + 6024^2 .

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

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 622488 + ... + 622600.

Almost surely, 2^70347472 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 70347472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76885704).

70347472 is an abundant number, since it is smaller than the sum of its proper divisors (83423936).

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

70347472 is a wasteful number, since it uses less digits than its factorization.

70347472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 34.

The square root of 70347472 is about 8387.3399835705. The cubic root of 70347472 is about 412.8093243993.

The spelling of 70347472 in words is "seventy million, three hundred forty-seven thousand, four hundred seventy-two".