47764817 has 8 divisors (see below), whose sum is σ = 49312296. Its totient is φ = 46230912.

The previous prime is 47764811. The next prime is 47764823. The reversal of 47764817 is 71846774.

It is a happy number.

47764817 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (47764811) and next prime (47764823).

It can be written as a sum of positive squares in 4 ways, for example, as 27415696 + 20349121 = 5236^2 + 4511^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 47764817 - 2¹² = 47760721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47764811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4013 + ... + 10565.

It is an arithmetic number, because the mean of its divisors is an integer number (6164037).

Almost surely, 2^47764817 is an apocalyptic number.

It is an amenable number.

47764817 is a deficient number, since it is larger than the sum of its proper divisors (1547479).

47764817 is a wasteful number, since it uses less digits than its factorization.

47764817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6787.

The product of its digits is 263424, while the sum is 44.

The square root of 47764817 is about 6911.2095178775. The cubic root of 47764817 is about 362.8295967017.

The spelling of 47764817 in words is "forty-seven million, seven hundred sixty-four thousand, eight hundred seventeen".