69289872 has 40 divisors (see below), whose sum is σ = 179542080. Its totient is φ = 23026560.

The previous prime is 69289853. The next prime is 69289879. The reversal of 69289872 is 27898296.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (69289879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15222 + ... + 19242.

It is an arithmetic number, because the mean of its divisors is an integer number (4488552).

Almost surely, 2^69289872 is an apocalyptic number.

It is an amenable number.

69289872 is an abundant number, since it is smaller than the sum of its proper divisors (110252208).

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

69289872 is a wasteful number, since it uses less digits than its factorization.

69289872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4391 (or 4385 counting only the distinct ones).

The product of its digits is 870912, while the sum is 51.

The square root of 69289872 is about 8324.0538201047. The cubic root of 69289872 is about 410.7301524291.

It can be divided in two parts, 69 and 289872, that added together give a triangular number (289941 = T₇₆₁).

The spelling of 69289872 in words is "sixty-nine million, two hundred eighty-nine thousand, eight hundred seventy-two".