69923045 has 4 divisors (see below), whose sum is σ = 83907660. Its totient is φ = 55938432.

The previous prime is 69923041. The next prime is 69923047. The reversal of 69923045 is 54032996.

It is a Cunningham number, because it is equal to 8362²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25180324 + 44742721 = 5018^2 + 6689^2 .

It is a cyclic number.

It is not a de Polignac number, because 69923045 - 2² = 69923041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69923041) 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, 6992300 + ... + 6992309.

It is an arithmetic number, because the mean of its divisors is an integer number (20976915).

Almost surely, 2^69923045 is an apocalyptic number.

It is an amenable number.

69923045 is a deficient number, since it is larger than the sum of its proper divisors (13984615).

69923045 is a wasteful number, since it uses less digits than its factorization.

69923045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13984614.

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 69923045 is about 8362.0000597943. Note that the first 4 decimals coincide. The cubic root of 69923045 is about 411.9774491223.

The spelling of 69923045 in words is "sixty-nine million, nine hundred twenty-three thousand, forty-five".