70347904 has 64 divisors (see below), whose sum is σ = 161935200. Its totient is φ = 30085120.

The previous prime is 70347877. The next prime is 70347913. The reversal of 70347904 is 40974307.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a self number, because there is not a number n which added to its sum of digits gives 70347904.

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, 22467 + ... + 25405.

Almost surely, 2^70347904 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 70347904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80967600).

70347904 is an abundant number, since it is smaller than the sum of its proper divisors (91587296).

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

70347904 is a wasteful number, since it uses less digits than its factorization.

70347904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2981 (or 2969 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 70347904 is about 8387.3657366303. The cubic root of 70347904 is about 412.8101694108.

The spelling of 70347904 in words is "seventy million, three hundred forty-seven thousand, nine hundred four".