69420305 has 8 divisors (see below), whose sum is σ = 83365800. Its totient is φ = 55495296.

The previous prime is 69420277. The next prime is 69420311. The reversal of 69420305 is 50302496.

It can be written as a sum of positive squares in 4 ways, for example, as 34480384 + 34939921 = 5872^2 + 5911^2 .

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 69420305 - 2¹² = 69416209 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3731 + ... + 12359.

It is an arithmetic number, because the mean of its divisors is an integer number (10420725).

Almost surely, 2^69420305 is an apocalyptic number.

It is an amenable number.

69420305 is a deficient number, since it is larger than the sum of its proper divisors (13945495).

69420305 is a wasteful number, since it uses less digits than its factorization.

69420305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10243.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 69420305 is about 8331.8848407788. The cubic root of 69420305 is about 410.9877138108.

The spelling of 69420305 in words is "sixty-nine million, four hundred twenty thousand, three hundred five".