69613993 has 8 divisors (see below), whose sum is σ = 70928000. Its totient is φ = 68305680.

The previous prime is 69613991. The next prime is 69614021. The reversal of 69613993 is 39931696.

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 69613993 - 2¹ = 69613991 is a prime.

It is a super-2 number, since 2×69613993² = 9692216042808098, which contains 22 as substring.

It is the 8344-th Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69613991) by changing a digit.

It is a nontrivial repunit in base 8343.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29296 + ... + 31582.

It is an arithmetic number, because the mean of its divisors is an integer number (8866000).

Almost surely, 2^69613993 is an apocalyptic number.

It is an amenable number.

69613993 is a deficient number, since it is larger than the sum of its proper divisors (1314007).

69613993 is a wasteful number, since it uses less digits than its factorization.

69613993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2847.

The product of its digits is 236196, while the sum is 46.

The square root of 69613993 is about 8343.5000449452. The cubic root of 69613993 is about 411.3695880076.

The spelling of 69613993 in words is "sixty-nine million, six hundred thirteen thousand, nine hundred ninety-three".