47920459 has 2 divisors, whose sum is σ = 47920460. Its totient is φ = 47920458.

The previous prime is 47920409. The next prime is 47920463. The reversal of 47920459 is 95402974.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47920459 is a prime.

It is equal to p_2883694 and since 47920459 and 2883694 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (47920409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23960229 + 23960230.

It is an arithmetic number, because the mean of its divisors is an integer number (23960230).

Almost surely, 2^47920459 is an apocalyptic number.

47920459 is a deficient number, since it is larger than the sum of its proper divisors (1).

47920459 is an equidigital number, since it uses as much as digits as its factorization.

47920459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 47920459 is about 6922.4604729821. The cubic root of 47920459 is about 363.2232637060.

The spelling of 47920459 in words is "forty-seven million, nine hundred twenty thousand, four hundred fifty-nine".