70319718 has 128 divisors (see below), whose sum is σ = 195747840. Its totient is φ = 18247680.

The previous prime is 70319713. The next prime is 70319723. The reversal of 70319718 is 81791307.

It is an interprime number because it is at equal distance from previous prime (70319713) and next prime (70319723).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70319713) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 199030 + ... + 199382.

It is an arithmetic number, because the mean of its divisors is an integer number (1529280).

Almost surely, 2^70319718 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70319718, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97873920).

70319718 is an abundant number, since it is smaller than the sum of its proper divisors (125428122).

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

70319718 is a wasteful number, since it uses less digits than its factorization.

70319718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419 (or 413 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 36.

The square root of 70319718 is about 8385.6853029433. The cubic root of 70319718 is about 412.7550290721.

The spelling of 70319718 in words is "seventy million, three hundred nineteen thousand, seven hundred eighteen".