47909836 has 24 divisors (see below), whose sum is σ = 90689984. Its totient is φ = 22014720.

The previous prime is 47909833. The next prime is 47909837. The reversal of 47909836 is 63890974.

It is not an unprimeable number, because it can be changed into a prime (47909831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10621 + ... + 14443.

Almost surely, 2^47909836 is an apocalyptic number.

It is an amenable number.

47909836 is a deficient number, since it is larger than the sum of its proper divisors (42780148).

47909836 is a wasteful number, since it uses less digits than its factorization.

47909836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4081 (or 4079 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 47909836 is about 6921.6931454666. The cubic root of 47909836 is about 363.1964219634.

The spelling of 47909836 in words is "forty-seven million, nine hundred nine thousand, eight hundred thirty-six".