70809764 has 12 divisors (see below), whose sum is σ = 128190300. Its totient is φ = 34183968.

The previous prime is 70809763. The next prime is 70809773. The reversal of 70809764 is 46790807.

It can be written as a sum of positive squares in 2 ways, for example, as 27144100 + 43665664 = 5210^2 + 6608^2 .

It is a super-3 number, since 3×70809764³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (70809763) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 305099 + ... + 305330.

It is an arithmetic number, because the mean of its divisors is an integer number (10682525).

Almost surely, 2^70809764 is an apocalyptic number.

It is an amenable number.

70809764 is a deficient number, since it is larger than the sum of its proper divisors (57380536).

70809764 is a wasteful number, since it uses less digits than its factorization.

70809764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610462 (or 610460 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 70809764 is about 8414.8537717539. The cubic root of 70809764 is about 413.7116166326.

The spelling of 70809764 in words is "seventy million, eight hundred nine thousand, seven hundred sixty-four".