905961749 has 16 divisors (see below), whose sum is σ = 1136720256. Its totient is φ = 701438400.

The previous prime is 905961737. The next prime is 905961779. The reversal of 905961749 is 947169509.

It is a cyclic number.

It is not a de Polignac number, because 905961749 - 2²⁸ = 637526293 is a prime.

It is a super-2 number, since 2×905961749² = 1641533381302278002, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 905961697 and 905961706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (905961709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25382 + ... + 49559.

It is an arithmetic number, because the mean of its divisors is an integer number (71045016).

Almost surely, 2^905961749 is an apocalyptic number.

It is an amenable number.

905961749 is a deficient number, since it is larger than the sum of its proper divisors (230758507).

905961749 is a wasteful number, since it uses less digits than its factorization.

905961749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75116.

The product of its (nonzero) digits is 612360, while the sum is 50.

The square root of 905961749 is about 30099.1984777004. The cubic root of 905961749 is about 967.6165484436.

The spelling of 905961749 in words is "nine hundred five million, nine hundred sixty-one thousand, seven hundred forty-nine".