70347918 has 16 divisors (see below), whose sum is σ = 148101120. Its totient is φ = 22215096.

The previous prime is 70347913. The next prime is 70347929. The reversal of 70347918 is 81974307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70347913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308430 + ... + 308657.

It is an arithmetic number, because the mean of its divisors is an integer number (9256320).

Almost surely, 2^70347918 is an apocalyptic number.

70347918 is an abundant number, since it is smaller than the sum of its proper divisors (77753202).

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

70347918 is a wasteful number, since it uses less digits than its factorization.

70347918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617111.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 70347918 is about 8387.3665712189. The cubic root of 70347918 is about 412.8101967953.

The spelling of 70347918 in words is "seventy million, three hundred forty-seven thousand, nine hundred eighteen".