47623997 has 2 divisors, whose sum is σ = 47623998. Its totient is φ = 47623996.

The previous prime is 47623991. The next prime is 47623999. The reversal of 47623997 is 79932674.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47623801 + 196 = 6901^2 + 14^2 .

It is a cyclic number.

It is not a de Polignac number, because 47623997 - 2¹⁶ = 47558461 is a prime.

Together with 47623999, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47623991) 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 as a sum of consecutive naturals, namely, 23811998 + 23811999.

It is an arithmetic number, because the mean of its divisors is an integer number (23811999).

Almost surely, 2^47623997 is an apocalyptic number.

It is an amenable number.

47623997 is a deficient number, since it is larger than the sum of its proper divisors (1).

47623997 is an equidigital number, since it uses as much as digits as its factorization.

47623997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 571536, while the sum is 47.

The square root of 47623997 is about 6901.0142008258. The cubic root of 47623997 is about 362.4726815719.

The spelling of 47623997 in words is "forty-seven million, six hundred twenty-three thousand, nine hundred ninety-seven".