905297972 has 12 divisors (see below), whose sum is σ = 1604326080. Its totient is φ = 446919096.

The previous prime is 905297969. The next prime is 905297977. The reversal of 905297972 is 279792509.

905297972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 905297972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (905297977) 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, 1432118 + ... + 1432749.

It is an arithmetic number, because the mean of its divisors is an integer number (133693840).

Almost surely, 2^905297972 is an apocalyptic number.

It is an amenable number.

905297972 is a deficient number, since it is larger than the sum of its proper divisors (699028108).

905297972 is a wasteful number, since it uses less digits than its factorization.

905297972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2864950 (or 2864948 counting only the distinct ones).

The product of its (nonzero) digits is 714420, while the sum is 50.

The square root of 905297972 is about 30088.1699676135. The cubic root of 905297972 is about 967.3801740287.

The spelling of 905297972 in words is "nine hundred five million, two hundred ninety-seven thousand, nine hundred seventy-two".