4771890 has 48 divisors (see below), whose sum is σ = 12751128. Its totient is φ = 1237248.

The previous prime is 4771889. The next prime is 4771891. The reversal of 4771890 is 981774.

4771890 is a `hidden beast` number, since 477 + 189 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (4771889) and next prime (4771891).

It can be written as a sum of positive squares in 4 ways, for example, as 4756761 + 15129 = 2181^2 + 123^2 .

It is not an unprimeable number, because it can be changed into a prime (4771891) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2614 + ... + 4046.

Almost surely, 2^4771890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4771890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6375564).

4771890 is an abundant number, since it is smaller than the sum of its proper divisors (7979238).

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

4771890 is a wasteful number, since it uses less digits than its factorization.

4771890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483 (or 1480 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 4771890 is about 2184.4656097087. The cubic root of 4771890 is about 168.3565979892.

The spelling of 4771890 in words is "four million, seven hundred seventy-one thousand, eight hundred ninety".