47216623 has 16 divisors (see below), whose sum is σ = 50282496. Its totient is φ = 44281440.

The previous prime is 47216621. The next prime is 47216629. The reversal of 47216623 is 32661274.

It is a cyclic number.

It is not a de Polignac number, because 47216623 - 2¹ = 47216621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47216621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123090 + ... + 123472.

It is an arithmetic number, because the mean of its divisors is an integer number (3142656).

Almost surely, 2^47216623 is an apocalyptic number.

47216623 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

47216623 is a deficient number, since it is larger than the sum of its proper divisors (3065873).

47216623 is a wasteful number, since it uses less digits than its factorization.

47216623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534.

The product of its digits is 12096, while the sum is 31.

The square root of 47216623 is about 6871.4352940270. The cubic root of 47216623 is about 361.4361943699.

Adding to 47216623 its reverse (32661274), we get a palindrome (79877897).

The spelling of 47216623 in words is "forty-seven million, two hundred sixteen thousand, six hundred twenty-three".