70945720 has 16 divisors (see below), whose sum is σ = 159627960. Its totient is φ = 28378272.

The previous prime is 70945681. The next prime is 70945723. The reversal of 70945720 is 2754907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70945723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 886782 + ... + 886861.

Almost surely, 2^70945720 is an apocalyptic number.

It is an amenable number.

70945720 is an abundant number, since it is smaller than the sum of its proper divisors (88682240).

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

70945720 is a wasteful number, since it uses less digits than its factorization.

70945720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1773654 (or 1773650 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 70945720 is about 8422.9282319155. The cubic root of 70945720 is about 413.9762252289.

The spelling of 70945720 in words is "seventy million, nine hundred forty-five thousand, seven hundred twenty".