47636890 has 32 divisors (see below), whose sum is σ = 103762944. Its totient is φ = 15371520.

The previous prime is 47636867. The next prime is 47636891. The reversal of 47636890 is 9863674.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (47636891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18826 + ... + 21205.

It is an arithmetic number, because the mean of its divisors is an integer number (3242592).

Almost surely, 2^47636890 is an apocalyptic number.

47636890 is an abundant number, since it is smaller than the sum of its proper divisors (56126054).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47636890 is a wasteful number, since it uses less digits than its factorization.

47636890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40062.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 47636890 is about 6901.9482756683. The cubic root of 47636890 is about 362.5053887427.

The spelling of 47636890 in words is "forty-seven million, six hundred thirty-six thousand, eight hundred ninety".