69995039 has 4 divisors (see below), whose sum is σ = 70161720. Its totient is φ = 69828360.

The previous prime is 69995021. The next prime is 69995041. The reversal of 69995039 is 93059996.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 69995039 - 2²⁰ = 68946463 is a prime.

It is a super-2 number, since 2×69995039² = 9798610969223042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69995089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82709 + ... + 83550.

It is an arithmetic number, because the mean of its divisors is an integer number (17540430).

Almost surely, 2^69995039 is an apocalyptic number.

69995039 is a deficient number, since it is larger than the sum of its proper divisors (166681).

69995039 is a wasteful number, since it uses less digits than its factorization.

69995039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166680.

The product of its (nonzero) digits is 590490, while the sum is 50.

The square root of 69995039 is about 8366.3037836311. The cubic root of 69995039 is about 412.1187937050.

The spelling of 69995039 in words is "sixty-nine million, nine hundred ninety-five thousand, thirty-nine".