48691829 has 2 divisors, whose sum is σ = 48691830. Its totient is φ = 48691828.

The previous prime is 48691817. The next prime is 48691831. The reversal of 48691829 is 92819684.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33466225 + 15225604 = 5785^2 + 3902^2 .

It is a cyclic number.

It is not a de Polignac number, because 48691829 - 2¹⁶ = 48626293 is a prime.

It is a super-2 number, since 2×48691829² = 4741788422730482, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 48691831, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (48691879) 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 as a sum of consecutive naturals, namely, 24345914 + 24345915.

It is an arithmetic number, because the mean of its divisors is an integer number (24345915).

Almost surely, 2^48691829 is an apocalyptic number.

It is an amenable number.

48691829 is a deficient number, since it is larger than the sum of its proper divisors (1).

48691829 is an equidigital number, since it uses as much as digits as its factorization.

48691829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 47.

The square root of 48691829 is about 6977.9530666235. The cubic root of 48691829 is about 365.1618197848.

The spelling of 48691829 in words is "forty-eight million, six hundred ninety-one thousand, eight hundred twenty-nine".