911972 has 6 divisors (see below), whose sum is σ = 1595958. Its totient is φ = 455984.

The previous prime is 911969. The next prime is 912007. The reversal of 911972 is 279119.

It can be written as a sum of positive squares in only one way, i.e., 481636 + 430336 = 694^2 + 656^2 .

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113993 + ... + 114000.

It is an arithmetic number, because the mean of its divisors is an integer number (265993).

2⁹¹¹⁹⁷² is an apocalyptic number.

It is an amenable number.

911972 is a deficient number, since it is larger than the sum of its proper divisors (683986).

911972 is a wasteful number, since it uses less digits than its factorization.

911972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227997 (or 227995 counting only the distinct ones).

The product of its digits is 1134, while the sum is 29.

The square root of 911972 is about 954.9722509058. The cubic root of 911972 is about 96.9751592606.

The spelling of 911972 in words is "nine hundred eleven thousand, nine hundred seventy-two".