69120789 has 4 divisors (see below), whose sum is σ = 92161056. Its totient is φ = 46080524.

The previous prime is 69120781. The next prime is 69120791. The reversal of 69120789 is 98702196.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 69120789 - 2³ = 69120781 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 69120789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69120781) 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 3 ways as a sum of consecutive naturals, for example, 11520129 + ... + 11520134.

It is an arithmetic number, because the mean of its divisors is an integer number (23040264).

Almost surely, 2^69120789 is an apocalyptic number.

It is an amenable number.

69120789 is a deficient number, since it is larger than the sum of its proper divisors (23040267).

69120789 is a wasteful number, since it uses less digits than its factorization.

69120789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23040266.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 69120789 is about 8313.8913271704. The cubic root of 69120789 is about 410.3957887370.

The spelling of 69120789 in words is "sixty-nine million, one hundred twenty thousand, seven hundred eighty-nine".