47660331 has 4 divisors (see below), whose sum is σ = 63547112. Its totient is φ = 31773552.

The previous prime is 47660323. The next prime is 47660357. The reversal of 47660331 is 13306674.

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

It is not a de Polignac number, because 47660331 - 2³ = 47660323 is a prime.

It is a super-2 number, since 2×47660331² = 4543014302059122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47660321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7943386 + ... + 7943391.

It is an arithmetic number, because the mean of its divisors is an integer number (15886778).

Almost surely, 2^47660331 is an apocalyptic number.

47660331 is a deficient number, since it is larger than the sum of its proper divisors (15886781).

47660331 is a wasteful number, since it uses less digits than its factorization.

47660331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15886780.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 47660331 is about 6903.6462105180. The cubic root of 47660331 is about 362.5648391350.

The spelling of 47660331 in words is "forty-seven million, six hundred sixty thousand, three hundred thirty-one".