48991429 has 2 divisors, whose sum is σ = 48991430. Its totient is φ = 48991428.

The previous prime is 48991427. The next prime is 48991477. The reversal of 48991429 is 92419984.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32467204 + 16524225 = 5698^2 + 4065^2 .

It is a cyclic number.

It is not a de Polignac number, because 48991429 - 2¹ = 48991427 is a prime.

Together with 48991427, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48991421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24495714 + 24495715.

It is an arithmetic number, because the mean of its divisors is an integer number (24495715).

Almost surely, 2^48991429 is an apocalyptic number.

It is an amenable number.

48991429 is a deficient number, since it is larger than the sum of its proper divisors (1).

48991429 is an equidigital number, since it uses as much as digits as its factorization.

48991429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 46.

The square root of 48991429 is about 6999.3877589401. The cubic root of 48991429 is about 365.9092337655.

It can be divided in two parts, 4899 and 1429, that added together give a triangular number (6328 = T₁₁₂).

The spelling of 48991429 in words is "forty-eight million, nine hundred ninety-one thousand, four hundred twenty-nine".