47907773 has 4 divisors (see below), whose sum is σ = 47947740. Its totient is φ = 47867808.

The previous prime is 47907763. The next prime is 47907779. The reversal of 47907773 is 37770974.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16345849 + 31561924 = 4043^2 + 5618^2 .

It is a cyclic number.

It is not a de Polignac number, because 47907773 - 2⁶ = 47907709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47907779) 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, 18128 + ... + 20601.

It is an arithmetic number, because the mean of its divisors is an integer number (11986935).

Almost surely, 2^47907773 is an apocalyptic number.

It is an amenable number.

47907773 is a deficient number, since it is larger than the sum of its proper divisors (39967).

47907773 is a wasteful number, since it uses less digits than its factorization.

47907773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39966.

The product of its (nonzero) digits is 259308, while the sum is 44.

The square root of 47907773 is about 6921.5441196311. The cubic root of 47907773 is about 363.1912088030.

The spelling of 47907773 in words is "forty-seven million, nine hundred seven thousand, seven hundred seventy-three".