69884985 has 16 divisors (see below), whose sum is σ = 112904064. Its totient is φ = 36909312.

The previous prime is 69884959. The next prime is 69885007. The reversal of 69884985 is 58948896.

It is not a de Polignac number, because 69884985 - 2⁹ = 69884473 is a prime.

It is a super-2 number, since 2×69884985² = 9767822256900450, which contains 22 as substring.

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, 21072 + ... + 24161.

It is an arithmetic number, because the mean of its divisors is an integer number (7056504).

Almost surely, 2^69884985 is an apocalyptic number.

It is an amenable number.

69884985 is a deficient number, since it is larger than the sum of its proper divisors (43019079).

69884985 is a wasteful number, since it uses less digits than its factorization.

69884985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45344.

The product of its digits is 4976640, while the sum is 57.

The square root of 69884985 is about 8359.7239786969. The cubic root of 69884985 is about 411.9026873730.

The spelling of 69884985 in words is "sixty-nine million, eight hundred eighty-four thousand, nine hundred eighty-five".