69889344 has 112 divisors (see below), whose sum is σ = 213360000. Its totient is φ = 19777536.

The previous prime is 69889327. The next prime is 69889361. The reversal of 69889344 is 44398896.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (69889327) and next prime (69889361).

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200082 + ... + 200430.

It is an arithmetic number, because the mean of its divisors is an integer number (1905000).

Almost surely, 2^69889344 is an apocalyptic number.

69889344 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69889344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106680000).

69889344 is an abundant number, since it is smaller than the sum of its proper divisors (143470656).

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

69889344 is a wasteful number, since it uses less digits than its factorization.

69889344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520 (or 510 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 51.

The square root of 69889344 is about 8359.9846889812. The cubic root of 69889344 is about 411.9112511891.

The spelling of 69889344 in words is "sixty-nine million, eight hundred eighty-nine thousand, three hundred forty-four".