69828245 has 4 divisors (see below), whose sum is σ = 83793900. Its totient is φ = 55862592.

The previous prime is 69828233. The next prime is 69828251. The reversal of 69828245 is 54282896.

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 17497489 + 52330756 = 4183^2 + 7234^2 .

It is a cyclic number.

It is not a de Polignac number, because 69828245 - 2⁶ = 69828181 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 69828196 and 69828205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6982820 + ... + 6982829.

It is an arithmetic number, because the mean of its divisors is an integer number (20948475).

Almost surely, 2^69828245 is an apocalyptic number.

It is an amenable number.

69828245 is a deficient number, since it is larger than the sum of its proper divisors (13965655).

69828245 is a wasteful number, since it uses less digits than its factorization.

69828245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13965654.

The product of its digits is 276480, while the sum is 44.

The square root of 69828245 is about 8356.3296368681. The cubic root of 69828245 is about 411.7911818450.

The spelling of 69828245 in words is "sixty-nine million, eight hundred twenty-eight thousand, two hundred forty-five".