49990487 has 2 divisors, whose sum is σ = 49990488. Its totient is φ = 49990486.

The previous prime is 49990483. The next prime is 49990511. The reversal of 49990487 is 78409994.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49990487 - 2² = 49990483 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49990481) 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, 24995243 + 24995244.

It is an arithmetic number, because the mean of its divisors is an integer number (24995244).

Almost surely, 2^49990487 is an apocalyptic number.

49990487 is a deficient number, since it is larger than the sum of its proper divisors (1).

49990487 is an equidigital number, since it uses as much as digits as its factorization.

49990487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 49990487 is about 7070.3951091859. The cubic root of 49990487 is about 368.3797842544.

The spelling of 49990487 in words is "forty-nine million, nine hundred ninety thousand, four hundred eighty-seven".