47420629 has 2 divisors, whose sum is σ = 47420630. Its totient is φ = 47420628.

The previous prime is 47420623. The next prime is 47420647. The reversal of 47420629 is 92602474.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47196900 + 223729 = 6870^2 + 473^2 .

It is a cyclic number.

It is not a de Polignac number, because 47420629 - 2³ = 47420621 is a prime.

It is equal to p_2855455 and since 47420629 and 2855455 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 47420594 and 47420603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47420621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23710314 + 23710315.

It is an arithmetic number, because the mean of its divisors is an integer number (23710315).

Almost surely, 2^47420629 is an apocalyptic number.

It is an amenable number.

47420629 is a deficient number, since it is larger than the sum of its proper divisors (1).

47420629 is an equidigital number, since it uses as much as digits as its factorization.

47420629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 47420629 is about 6886.2637910553. The cubic root of 47420629 is about 361.9559916181.

The spelling of 47420629 in words is "forty-seven million, four hundred twenty thousand, six hundred twenty-nine".