47487658 has 4 divisors (see below), whose sum is σ = 71231490. Its totient is φ = 23743828.

The previous prime is 47487653. The next prime is 47487659. The reversal of 47487658 is 85678474.

It is a happy number.

47487658 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 45657049 + 1830609 = 6757^2 + 1353^2 .

It is not an unprimeable number, because it can be changed into a prime (47487653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11871913 + ... + 11871916.

Almost surely, 2^47487658 is an apocalyptic number.

47487658 is a deficient number, since it is larger than the sum of its proper divisors (23743832).

47487658 is a wasteful number, since it uses less digits than its factorization.

47487658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23743831.

The product of its digits is 1505280, while the sum is 49.

The square root of 47487658 is about 6891.1289350875. The cubic root of 47487658 is about 362.1264527754.

The spelling of 47487658 in words is "forty-seven million, four hundred eighty-seven thousand, six hundred fifty-eight".