47639629 has 2 divisors, whose sum is σ = 47639630. Its totient is φ = 47639628.

The previous prime is 47639617. The next prime is 47639639. The reversal of 47639629 is 92693674.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47637604 + 2025 = 6902^2 + 45^2 .

It is a cyclic number.

It is not a de Polignac number, because 47639629 - 2¹⁵ = 47606861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47639639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23819814 + 23819815.

It is an arithmetic number, because the mean of its divisors is an integer number (23819815).

Almost surely, 2^47639629 is an apocalyptic number.

It is an amenable number.

47639629 is a deficient number, since it is larger than the sum of its proper divisors (1).

47639629 is an equidigital number, since it uses as much as digits as its factorization.

47639629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 489888, while the sum is 46.

The square root of 47639629 is about 6902.1466950508. The cubic root of 47639629 is about 362.5123363221.

The spelling of 47639629 in words is "forty-seven million, six hundred thirty-nine thousand, six hundred twenty-nine".