69813969 has 8 divisors (see below), whose sum is σ = 93955680. Its totient is φ = 46107456.

The previous prime is 69813943. The next prime is 69813979. The reversal of 69813969 is 96931896.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 69813969 - 2⁵ = 69813937 is a prime.

It is a super-2 number, since 2×69813969² = 9747980535065922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (69813979) 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 7 ways as a sum of consecutive naturals, for example, 108424 + ... + 109065.

It is an arithmetic number, because the mean of its divisors is an integer number (11744460).

Almost surely, 2^69813969 is an apocalyptic number.

It is an amenable number.

69813969 is a deficient number, since it is larger than the sum of its proper divisors (24141711).

69813969 is a wasteful number, since it uses less digits than its factorization.

69813969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217599.

The product of its digits is 629856, while the sum is 51.

The square root of 69813969 is about 8355.4753904251. The cubic root of 69813969 is about 411.7631171195.

The spelling of 69813969 in words is "sixty-nine million, eight hundred thirteen thousand, nine hundred sixty-nine".