905221652 has 6 divisors (see below), whose sum is σ = 1584137898. Its totient is φ = 452610824.

The previous prime is 905221621. The next prime is 905221697. The reversal of 905221652 is 256122509.

905221652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 676728196 + 228493456 = 26014^2 + 15116^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113152703 + ... + 113152710.

It is an arithmetic number, because the mean of its divisors is an integer number (264022983).

Almost surely, 2^905221652 is an apocalyptic number.

It is an amenable number.

905221652 is a deficient number, since it is larger than the sum of its proper divisors (678916246).

905221652 is a wasteful number, since it uses less digits than its factorization.

905221652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226305417 (or 226305415 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 905221652 is about 30086.9016683340. The cubic root of 905221652 is about 967.3529886775.

The spelling of 905221652 in words is "nine hundred five million, two hundred twenty-one thousand, six hundred fifty-two".