69980394 has 32 divisors (see below), whose sum is σ = 156816576. Its totient is φ = 20632320.

The previous prime is 69980387. The next prime is 69980411. The reversal of 69980394 is 49308996.

69980394 = T₃₉₃₉ + T₃₉₄₀ + ... + T₃₉₄₇.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 11887 + ... + 16770.

It is an arithmetic number, because the mean of its divisors is an integer number (4900518).

Almost surely, 2^69980394 is an apocalyptic number.

69980394 is an abundant number, since it is smaller than the sum of its proper divisors (86836182).

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

69980394 is a wasteful number, since it uses less digits than its factorization.

69980394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28710.

The product of its (nonzero) digits is 419904, while the sum is 48.

The square root of 69980394 is about 8365.4285006806. The cubic root of 69980394 is about 412.0900492834.

The spelling of 69980394 in words is "sixty-nine million, nine hundred eighty thousand, three hundred ninety-four".