69428456 has 8 divisors (see below), whose sum is σ = 130178370. Its totient is φ = 34714224.

The previous prime is 69428417. The next prime is 69428477. The reversal of 69428456 is 65482496.

It can be written as a sum of positive squares in only one way, i.e., 65060356 + 4368100 = 8066^2 + 2090^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 4339271 + ... + 4339286.

Almost surely, 2^69428456 is an apocalyptic number.

It is an amenable number.

69428456 is a deficient number, since it is larger than the sum of its proper divisors (60749914).

69428456 is a wasteful number, since it uses less digits than its factorization.

69428456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8678563 (or 8678559 counting only the distinct ones).

The product of its digits is 414720, while the sum is 44.

The square root of 69428456 is about 8332.3739714442. The cubic root of 69428456 is about 411.0037985848.

The spelling of 69428456 in words is "sixty-nine million, four hundred twenty-eight thousand, four hundred fifty-six".