47681492 has 6 divisors (see below), whose sum is σ = 83442618. Its totient is φ = 23840744.

The previous prime is 47681489. The next prime is 47681497. The reversal of 47681492 is 29418674.

It can be written as a sum of positive squares in only one way, i.e., 41550916 + 6130576 = 6446^2 + 2476^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47681497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5960183 + ... + 5960190.

It is an arithmetic number, because the mean of its divisors is an integer number (13907103).

Almost surely, 2^47681492 is an apocalyptic number.

It is an amenable number.

47681492 is a deficient number, since it is larger than the sum of its proper divisors (35761126).

47681492 is a wasteful number, since it uses less digits than its factorization.

47681492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11920377 (or 11920375 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The square root of 47681492 is about 6905.1786363569. The cubic root of 47681492 is about 362.6184903176.

The spelling of 47681492 in words is "forty-seven million, six hundred eighty-one thousand, four hundred ninety-two".