47287789 has 8 divisors (see below), whose sum is σ = 49839840. Its totient is φ = 44742096.

The previous prime is 47287787. The next prime is 47287811. The reversal of 47287789 is 98778274.

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 not a de Polignac number, because 47287789 - 2¹ = 47287787 is a prime.

It is a super-2 number, since 2×47287789² = 4472269977017042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47287783) 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, 27534 + ... + 29200.

It is an arithmetic number, because the mean of its divisors is an integer number (6229980).

Almost surely, 2^47287789 is an apocalyptic number.

It is an amenable number.

47287789 is a deficient number, since it is larger than the sum of its proper divisors (2552051).

47287789 is a wasteful number, since it uses less digits than its factorization.

47287789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3179.

The product of its digits is 1580544, while the sum is 52.

The square root of 47287789 is about 6876.6117383491. The cubic root of 47287789 is about 361.6176915805.

The spelling of 47287789 in words is "forty-seven million, two hundred eighty-seven thousand, seven hundred eighty-nine".