69248645 has 8 divisors (see below), whose sum is σ = 85344504. Its totient is φ = 53901504.

The previous prime is 69248639. The next prime is 69248657. The reversal of 69248645 is 54684296.

It can be written as a sum of positive squares in 4 ways, for example, as 7059649 + 62188996 = 2657^2 + 7886^2 .

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 69248645 - 2²⁴ = 52471429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 69248596 and 69248605.

It is a congruent number.

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, 186974 + ... + 187343.

It is an arithmetic number, because the mean of its divisors is an integer number (10668063).

Almost surely, 2^69248645 is an apocalyptic number.

It is an amenable number.

69248645 is a deficient number, since it is larger than the sum of its proper divisors (16095859).

69248645 is a wasteful number, since it uses less digits than its factorization.

69248645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374359.

The product of its digits is 414720, while the sum is 44.

The square root of 69248645 is about 8321.5770740888. The cubic root of 69248645 is about 410.6486757236.

The spelling of 69248645 in words is "sixty-nine million, two hundred forty-eight thousand, six hundred forty-five".