47900905 has 8 divisors (see below), whose sum is σ = 61902792. Its totient is φ = 35372928.

The previous prime is 47900899. The next prime is 47900911. The reversal of 47900905 is 50900974.

It is an interprime number because it is at equal distance from previous prime (47900899) and next prime (47900911).

It can be written as a sum of positive squares in 4 ways, for example, as 304704 + 47596201 = 552^2 + 6899^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47900905 - 2⁵ = 47900873 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 368404 + ... + 368533.

It is an arithmetic number, because the mean of its divisors is an integer number (7737849).

Almost surely, 2^47900905 is an apocalyptic number.

It is an amenable number.

47900905 is a deficient number, since it is larger than the sum of its proper divisors (14001887).

47900905 is a wasteful number, since it uses less digits than its factorization.

47900905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736955.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 47900905 is about 6921.0479697803. The cubic root of 47900905 is about 363.1738524238.

The spelling of 47900905 in words is "forty-seven million, nine hundred thousand, nine hundred five".