47999389 has 2 divisors, whose sum is σ = 47999390. Its totient is φ = 47999388.

The previous prime is 47999363. The next prime is 47999401. The reversal of 47999389 is 98399974.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32867289 + 15132100 = 5733^2 + 3890^2 .

It is a cyclic number.

It is not a de Polignac number, because 47999389 - 2⁷ = 47999261 is a prime.

It is a super-3 number, since 3×47999389³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47999359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23999694 + 23999695.

It is an arithmetic number, because the mean of its divisors is an integer number (23999695).

Almost surely, 2^47999389 is an apocalyptic number.

It is an amenable number.

47999389 is a deficient number, since it is larger than the sum of its proper divisors (1).

47999389 is an equidigital number, since it uses as much as digits as its factorization.

47999389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4408992, while the sum is 58.

The square root of 47999389 is about 6928.1591350084. The cubic root of 47999389 is about 363.4225765312.

The spelling of 47999389 in words is "forty-seven million, nine hundred ninety-nine thousand, three hundred eighty-nine".