69805072 has 20 divisors (see below), whose sum is σ = 136447740. Its totient is φ = 34592768.

The previous prime is 69805067. The next prime is 69805079. The reversal of 69805072 is 27050896.

It can be written as a sum of positive squares in 2 ways, for example, as 8088336 + 61716736 = 2844^2 + 7856^2 .

It is not an unprimeable number, because it can be changed into a prime (69805079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17497 + ... + 21112.

It is an arithmetic number, because the mean of its divisors is an integer number (6822387).

Almost surely, 2^69805072 is an apocalyptic number.

It is an amenable number.

69805072 is a deficient number, since it is larger than the sum of its proper divisors (66642668).

69805072 is a wasteful number, since it uses less digits than its factorization.

69805072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38730 (or 38724 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 69805072 is about 8354.9429680878. The cubic root of 69805072 is about 411.7456248605.

The spelling of 69805072 in words is "sixty-nine million, eight hundred five thousand, seventy-two".