69671972 has 6 divisors (see below), whose sum is σ = 121925958. Its totient is φ = 34835984.

The previous prime is 69671951. The next prime is 69671977. The reversal of 69671972 is 27917696.

It can be written as a sum of positive squares in only one way, i.e., 68293696 + 1378276 = 8264^2 + 1174^2 .

It is not an unprimeable number, because it can be changed into a prime (69671977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8708993 + ... + 8709000.

It is an arithmetic number, because the mean of its divisors is an integer number (20320993).

Almost surely, 2^69671972 is an apocalyptic number.

It is an amenable number.

69671972 is a deficient number, since it is larger than the sum of its proper divisors (52253986).

69671972 is a wasteful number, since it uses less digits than its factorization.

69671972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17417997 (or 17417995 counting only the distinct ones).

The product of its digits is 285768, while the sum is 47.

The square root of 69671972 is about 8346.9738228893. The cubic root of 69671972 is about 411.4837613124.

The spelling of 69671972 in words is "sixty-nine million, six hundred seventy-one thousand, nine hundred seventy-two".