69385890 has 32 divisors (see below), whose sum is σ = 190316160. Its totient is φ = 15859584.

The previous prime is 69385879. The next prime is 69385909. The reversal of 69385890 is 9858396.

It is a Curzon 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, 164995 + ... + 165414.

It is an arithmetic number, because the mean of its divisors is an integer number (5947380).

Almost surely, 2^69385890 is an apocalyptic number.

69385890 is an abundant number, since it is smaller than the sum of its proper divisors (120930270).

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

69385890 is a wasteful number, since it uses less digits than its factorization.

69385890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330426.

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 69385890 is about 8329.8193257717. The cubic root of 69385890 is about 410.9197870943.

The spelling of 69385890 in words is "sixty-nine million, three hundred eighty-five thousand, eight hundred ninety".