69995813 has 8 divisors (see below), whose sum is σ = 71198400. Its totient is φ = 68803488.

The previous prime is 69995803. The next prime is 69995839. The reversal of 69995813 is 31859996.

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

It is a cyclic number.

It is not a de Polignac number, because 69995813 - 2⁴ = 69995797 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69995803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11873 + ... + 16761.

It is an arithmetic number, because the mean of its divisors is an integer number (8899800).

Almost surely, 2^69995813 is an apocalyptic number.

It is an amenable number.

69995813 is a deficient number, since it is larger than the sum of its proper divisors (1202587).

69995813 is a wasteful number, since it uses less digits than its factorization.

69995813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5131.

The product of its digits is 524880, while the sum is 50.

The square root of 69995813 is about 8366.3500404896. The cubic root of 69995813 is about 412.1203127591.

The spelling of 69995813 in words is "sixty-nine million, nine hundred ninety-five thousand, eight hundred thirteen".