69089345 has 8 divisors (see below), whose sum is σ = 89284776. Its totient is φ = 51019776.

The previous prime is 69089333. The next prime is 69089357. The reversal of 69089345 is 54398096.

It is a Cunningham number, because it is equal to 8312²+1.

It is an interprime number because it is at equal distance from previous prime (69089333) and next prime (69089357).

It can be written as a sum of positive squares in 4 ways, for example, as 10214416 + 58874929 = 3196^2 + 7673^2 .

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 69089345 - 2¹² = 69085249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 69089296 and 69089305.

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, 531392 + ... + 531521.

It is an arithmetic number, because the mean of its divisors is an integer number (11160597).

Almost surely, 2^69089345 is an apocalyptic number.

69089345 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

69089345 is a deficient number, since it is larger than the sum of its proper divisors (20195431).

69089345 is a wasteful number, since it uses less digits than its factorization.

69089345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062931.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 69089345 is about 8312.0000601540. Note that the first 4 decimals coincide. The cubic root of 69089345 is about 410.3335477302. Note that the first 3 decimals are identical.

The spelling of 69089345 in words is "sixty-nine million, eighty-nine thousand, three hundred forty-five".