906771722 has 4 divisors (see below), whose sum is σ = 1360157586. Its totient is φ = 453385860.

The previous prime is 906771673. The next prime is 906771737. The reversal of 906771722 is 227177609.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 891082201 + 15689521 = 29851^2 + 3961^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 906771722.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226692929 + ... + 226692932.

Almost surely, 2^906771722 is an apocalyptic number.

906771722 is a deficient number, since it is larger than the sum of its proper divisors (453385864).

906771722 is a wasteful number, since it uses less digits than its factorization.

906771722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453385863.

The product of its (nonzero) digits is 74088, while the sum is 41.

The square root of 906771722 is about 30112.6505309646. The cubic root of 906771722 is about 967.9048276590.

The spelling of 906771722 in words is "nine hundred six million, seven hundred seventy-one thousand, seven hundred twenty-two".