47750666 has 4 divisors (see below), whose sum is σ = 71626002. Its totient is φ = 23875332.

The previous prime is 47750657. The next prime is 47750669. The reversal of 47750666 is 66605774.

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., 29866225 + 17884441 = 5465^2 + 4229^2 .

It is a super-2 number, since 2×47750666² = 4560252206887112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47750669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11937665 + ... + 11937668.

Almost surely, 2^47750666 is an apocalyptic number.

47750666 is a deficient number, since it is larger than the sum of its proper divisors (23875336).

47750666 is a wasteful number, since it uses less digits than its factorization.

47750666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23875335.

The product of its (nonzero) digits is 211680, while the sum is 41.

The square root of 47750666 is about 6910.1856704433. The cubic root of 47750666 is about 362.7937620359.

The spelling of 47750666 in words is "forty-seven million, seven hundred fifty thousand, six hundred sixty-six".