900605047 has 4 divisors (see below), whose sum is σ = 907084360. Its totient is φ = 894125736.

The previous prime is 900605011. The next prime is 900605059. The reversal of 900605047 is 740506009.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-900605047 is a prime.

It is a super-2 number, since 2×900605047² = 1622178901363744418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (900605747) 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, 3239448 + ... + 3239725.

It is an arithmetic number, because the mean of its divisors is an integer number (226771090).

Almost surely, 2^900605047 is an apocalyptic number.

900605047 is a deficient number, since it is larger than the sum of its proper divisors (6479313).

900605047 is a wasteful number, since it uses less digits than its factorization.

900605047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6479312.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 900605047 is about 30010.0824224126. The cubic root of 900605047 is about 965.7056940863.

The spelling of 900605047 in words is "nine hundred million, six hundred five thousand, forty-seven".