47981090 has 16 divisors (see below), whose sum is σ = 87583680. Its totient is φ = 18921840.

The previous prime is 47981083. The next prime is 47981093. The reversal of 47981090 is 9018974.

It is not an unprimeable number, because it can be changed into a prime (47981093) 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, 33080 + ... + 34499.

It is an arithmetic number, because the mean of its divisors is an integer number (5473980).

Almost surely, 2^47981090 is an apocalyptic number.

47981090 is a deficient number, since it is larger than the sum of its proper divisors (39602590).

47981090 is a wasteful number, since it uses less digits than its factorization.

47981090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67657.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 47981090 is about 6926.8383841403. The cubic root of 47981090 is about 363.3763876445.

The spelling of 47981090 in words is "forty-seven million, nine hundred eighty-one thousand, ninety".