69663121 has 8 divisors (see below), whose sum is σ = 76437504. Its totient is φ = 62962320.

The previous prime is 69663109. The next prime is 69663149. The reversal of 69663121 is 12136696.

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 69663121 - 2⁹ = 69662609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (69663221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16401 + ... + 20206.

It is an arithmetic number, because the mean of its divisors is an integer number (9554688).

Almost surely, 2^69663121 is an apocalyptic number.

It is an amenable number.

69663121 is a deficient number, since it is larger than the sum of its proper divisors (6774383).

69663121 is a wasteful number, since it uses less digits than its factorization.

69663121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36791.

The product of its digits is 11664, while the sum is 34.

The square root of 69663121 is about 8346.4436138993. The cubic root of 69663121 is about 411.4663358595.

The spelling of 69663121 in words is "sixty-nine million, six hundred sixty-three thousand, one hundred twenty-one".