69716545 has 12 divisors (see below), whose sum is σ = 85662036. Its totient is φ = 54468960.

The previous prime is 69716503. The next prime is 69716561. The reversal of 69716545 is 54561796.

It can be written as a sum of positive squares in 2 ways, for example, as 15649936 + 54066609 = 3956^2 + 7353^2 .

It is not a de Polignac number, because 69716545 - 2⁷ = 69716417 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5475 + ... + 13015.

It is an arithmetic number, because the mean of its divisors is an integer number (7138503).

Almost surely, 2^69716545 is an apocalyptic number.

It is an amenable number.

69716545 is a deficient number, since it is larger than the sum of its proper divisors (15945491).

69716545 is an equidigital number, since it uses as much as digits as its factorization.

69716545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7632 (or 7589 counting only the distinct ones).

The product of its digits is 226800, while the sum is 43.

The square root of 69716545 is about 8349.6434055593. The cubic root of 69716545 is about 411.5714922191.

The spelling of 69716545 in words is "sixty-nine million, seven hundred sixteen thousand, five hundred forty-five".