900029549 has 4 divisors (see below), whose sum is σ = 901116060. Its totient is φ = 898943040.

The previous prime is 900029539. The next prime is 900029617. The reversal of 900029549 is 945920009.

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

It can be written as a sum of positive squares in 2 ways, for example, as 607277449 + 292752100 = 24643^2 + 17110^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-900029549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (900029509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 542012 + ... + 543669.

It is an arithmetic number, because the mean of its divisors is an integer number (225279015).

Almost surely, 2^900029549 is an apocalyptic number.

It is an amenable number.

900029549 is a deficient number, since it is larger than the sum of its proper divisors (1086511).

900029549 is a wasteful number, since it uses less digits than its factorization.

900029549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086510.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 900029549 is about 30000.4924792911. The cubic root of 900029549 is about 965.4999508773.

The spelling of 900029549 in words is "nine hundred million, twenty-nine thousand, five hundred forty-nine".