69312772 has 6 divisors (see below), whose sum is σ = 121297358. Its totient is φ = 34656384.

The previous prime is 69312769. The next prime is 69312797. The reversal of 69312772 is 27721396.

It can be written as a sum of positive squares in only one way, i.e., 37773316 + 31539456 = 6146^2 + 5616^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8664093 + ... + 8664100.

Almost surely, 2^69312772 is an apocalyptic number.

It is an amenable number.

69312772 is a deficient number, since it is larger than the sum of its proper divisors (51984586).

69312772 is a wasteful number, since it uses less digits than its factorization.

69312772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17328197 (or 17328195 counting only the distinct ones).

The product of its digits is 31752, while the sum is 37.

The square root of 69312772 is about 8325.4292381835. The cubic root of 69312772 is about 410.7753956189.

The spelling of 69312772 in words is "sixty-nine million, three hundred twelve thousand, seven hundred seventy-two".