47661842 has 24 divisors (see below), whose sum is σ = 78702960. Its totient is φ = 21585960.

The previous prime is 47661841. The next prime is 47661853. The reversal of 47661842 is 24816674.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 47661796 and 47661805.

It is not an unprimeable number, because it can be changed into a prime (47661841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18917 + ... + 21287.

It is an arithmetic number, because the mean of its divisors is an integer number (3279290).

Almost surely, 2^47661842 is an apocalyptic number.

47661842 is a deficient number, since it is larger than the sum of its proper divisors (31041118).

47661842 is a wasteful number, since it uses less digits than its factorization.

47661842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2438 (or 2415 counting only the distinct ones).

The product of its digits is 64512, while the sum is 38.

The square root of 47661842 is about 6903.7556445749. The cubic root of 47661842 is about 362.5686706211.

The spelling of 47661842 in words is "forty-seven million, six hundred sixty-one thousand, eight hundred forty-two".