47666420 has 24 divisors (see below), whose sum is σ = 100401000. Its totient is φ = 19009152.

The previous prime is 47666417. The next prime is 47666429. The reversal of 47666420 is 2466674.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9572836 + 38093584 = 3094^2 + 6172^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47666429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3566 + ... + 10394.

It is an arithmetic number, because the mean of its divisors is an integer number (4183375).

Almost surely, 2^47666420 is an apocalyptic number.

It is an amenable number.

47666420 is an abundant number, since it is smaller than the sum of its proper divisors (52734580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47666420 is a wasteful number, since it uses less digits than its factorization.

47666420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7187 (or 7185 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 47666420 is about 6904.0871952779. The cubic root of 47666420 is about 362.5802786927.

The spelling of 47666420 in words is "forty-seven million, six hundred sixty-six thousand, four hundred twenty".