900047477 has 24 divisors (see below), whose sum is σ = 1087773120. Its totient is φ = 729368640.

The previous prime is 900047453. The next prime is 900047479. The reversal of 900047477 is 774740009.

It is not a de Polignac number, because 900047477 - 2⁶ = 900047413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 900047477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (900047479) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 328202 + ... + 330932.

It is an arithmetic number, because the mean of its divisors is an integer number (45323880).

Almost surely, 2^900047477 is an apocalyptic number.

It is an amenable number.

900047477 is a deficient number, since it is larger than the sum of its proper divisors (187725643).

900047477 is a wasteful number, since it uses less digits than its factorization.

900047477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2873 (or 2850 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 38.

The square root of 900047477 is about 30000.7912728981. The cubic root of 900047477 is about 965.5063615440.

The spelling of 900047477 in words is "nine hundred million, forty-seven thousand, four hundred seventy-seven".