47777850 has 120 divisors (see below), whose sum is σ = 136116288. Its totient is φ = 12420000.

The previous prime is 47777839. The next prime is 47777867. The reversal of 47777850 is 5877774.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 47777796 and 47777805.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 190225 + ... + 190475.

Almost surely, 2^47777850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47777850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68058144).

47777850 is an abundant number, since it is smaller than the sum of its proper divisors (88338438).

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

47777850 is a wasteful number, since it uses less digits than its factorization.

47777850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322 (or 308 counting only the distinct ones).

The product of its (nonzero) digits is 384160, while the sum is 45.

The square root of 47777850 is about 6912.1523420712. The cubic root of 47777850 is about 362.8625939885.

The spelling of 47777850 in words is "forty-seven million, seven hundred seventy-seven thousand, eight hundred fifty".