69748109 has 8 divisors (see below), whose sum is σ = 72172800. Its totient is φ = 67334400.

The previous prime is 69748099. The next prime is 69748111. The reversal of 69748109 is 90184796.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-69748109 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 69748109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69748009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11414 + ... + 16424.

It is an arithmetic number, because the mean of its divisors is an integer number (9021600).

Almost surely, 2^69748109 is an apocalyptic number.

It is an amenable number.

69748109 is a deficient number, since it is larger than the sum of its proper divisors (2424691).

69748109 is a wasteful number, since it uses less digits than its factorization.

69748109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5491.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 69748109 is about 8351.5333322690. The cubic root of 69748109 is about 411.6335955192.

The spelling of 69748109 in words is "sixty-nine million, seven hundred forty-eight thousand, one hundred nine".