69648071 has 4 divisors (see below), whose sum is σ = 72676272. Its totient is φ = 66619872.

The previous prime is 69648067. The next prime is 69648079. The reversal of 69648071 is 17084696.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 69648071 - 2² = 69648067 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69648079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1514066 + ... + 1514111.

It is an arithmetic number, because the mean of its divisors is an integer number (18169068).

Almost surely, 2^69648071 is an apocalyptic number.

69648071 is a deficient number, since it is larger than the sum of its proper divisors (3028201).

69648071 is a wasteful number, since it uses less digits than its factorization.

69648071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3028200.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 69648071 is about 8345.5419835982. The cubic root of 69648071 is about 411.4367027037.

The spelling of 69648071 in words is "sixty-nine million, six hundred forty-eight thousand, seventy-one".