69028812 has 18 divisors (see below), whose sum is σ = 174489588. Its totient is φ = 23009592.

The previous prime is 69028801. The next prime is 69028829. The reversal of 69028812 is 21882096.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×69028812² = 9529953772262688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1917467 = 69028812 / (6 + 9 + 0 + 2 + 8 + 8 + 1 + 2).

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 958698 + ... + 958769.

It is an arithmetic number, because the mean of its divisors is an integer number (9693866).

Almost surely, 2^69028812 is an apocalyptic number.

It is an amenable number.

69028812 is an abundant number, since it is smaller than the sum of its proper divisors (105460776).

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

69028812 is a wasteful number, since it uses less digits than its factorization.

69028812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1917477 (or 1917472 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 69028812 is about 8308.3579605118. The cubic root of 69028812 is about 410.2136740682.

The spelling of 69028812 in words is "sixty-nine million, twenty-eight thousand, eight hundred twelve".