69804890 has 16 divisors (see below), whose sum is σ = 133040232. Its totient is φ = 26279424.

The previous prime is 69804881. The next prime is 69804893. The reversal of 69804890 is 9840896.

It can be written as a sum of positive squares in 4 ways, for example, as 43784689 + 26020201 = 6617^2 + 5101^2 .

It is not an unprimeable number, because it can be changed into a prime (69804893) 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 7 ways as a sum of consecutive naturals, for example, 205139 + ... + 205478.

Almost surely, 2^69804890 is an apocalyptic number.

69804890 is a deficient number, since it is larger than the sum of its proper divisors (63235342).

69804890 is a wasteful number, since it uses less digits than its factorization.

69804890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410641.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 69804890 is about 8354.9320763247. The cubic root of 69804890 is about 411.7452670175.

The spelling of 69804890 in words is "sixty-nine million, eight hundred four thousand, eight hundred ninety".