70311808 has 64 divisors (see below), whose sum is σ = 161935200. Its totient is φ = 29786112.

The previous prime is 70311793. The next prime is 70311823. The reversal of 70311808 is 80811307.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (70311793) and next prime (70311823).

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 (28).

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 7 ways as a sum of consecutive naturals, for example, 86508 + ... + 87316.

Almost surely, 2^70311808 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 70311808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80967600).

70311808 is an abundant number, since it is smaller than the sum of its proper divisors (91623392).

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

70311808 is an equidigital number, since it uses as much as digits as its factorization.

70311808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 927 (or 915 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 70311808 is about 8385.2136526149. The cubic root of 70311808 is about 412.7395520726.

The spelling of 70311808 in words is "seventy million, three hundred eleven thousand, eight hundred eight".