47921629 has 32 divisors (see below), whose sum is σ = 60825600. Its totient is φ = 36832320.

The previous prime is 47921611. The next prime is 47921647. The reversal of 47921629 is 92612974.

It is an interprime number because it is at equal distance from previous prime (47921611) and next prime (47921647).

It is not a de Polignac number, because 47921629 - 2⁹ = 47921117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47921591 and 47921600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47921609) 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 31 ways as a sum of consecutive naturals, for example, 243159 + ... + 243355.

It is an arithmetic number, because the mean of its divisors is an integer number (1900800).

Almost surely, 2^47921629 is an apocalyptic number.

It is an amenable number.

47921629 is a deficient number, since it is larger than the sum of its proper divisors (12903971).

47921629 is a wasteful number, since it uses less digits than its factorization.

47921629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313.

The product of its digits is 54432, while the sum is 40.

The square root of 47921629 is about 6922.5449799911. The cubic root of 47921629 is about 363.2262197695.

The spelling of 47921629 in words is "forty-seven million, nine hundred twenty-one thousand, six hundred twenty-nine".