47777773 has 8 divisors (see below), whose sum is σ = 49104000. Its totient is φ = 46461408.

The previous prime is 47777749. The next prime is 47777783. The reversal of 47777773 is 37777774.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47777773 is a prime.

It is a deceptive number, since it divides R_47777772.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47777783) 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, 7953 + ... + 12601.

It is an arithmetic number, because the mean of its divisors is an integer number (6138000).

Almost surely, 2^47777773 is an apocalyptic number.

47777773 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

47777773 is a deficient number, since it is larger than the sum of its proper divisors (1326227).

47777773 is a wasteful number, since it uses less digits than its factorization.

47777773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4931.

The product of its digits is 1411788, while the sum is 49.

The square root of 47777773 is about 6912.1467721685. The cubic root of 47777773 is about 362.8623990556.

Subtracting from 47777773 its reverse (37777774), we obtain a palindrome (9999999).

It can be divided in two parts, 4 and 7777773, that added together give a palindrome (7777777).

The spelling of 47777773 in words is "forty-seven million, seven hundred seventy-seven thousand, seven hundred seventy-three".