47671690 has 32 divisors (see below), whose sum is σ = 94141440. Its totient is φ = 17236800.

The previous prime is 47671669. The next prime is 47671691. The reversal of 47671690 is 9617674.

It is a super-2 number, since 2×47671690² = 4545180054912200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47671691) 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, 19876 + ... + 22144.

It is an arithmetic number, because the mean of its divisors is an integer number (2941920).

Almost surely, 2^47671690 is an apocalyptic number.

47671690 is a deficient number, since it is larger than the sum of its proper divisors (46469750).

47671690 is a wasteful number, since it uses less digits than its factorization.

47671690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2478.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 47671690 is about 6904.4688427134. The cubic root of 47671690 is about 362.5936404937.

The spelling of 47671690 in words is "forty-seven million, six hundred seventy-one thousand, six hundred ninety".