49942487 has 8 divisors (see below), whose sum is σ = 57666336. Its totient is φ = 42365952.

The previous prime is 49942441. The next prime is 49942493. The reversal of 49942487 is 78424994.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49942487 - 2¹⁸ = 49680343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49945487) 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 in 7 ways as a sum of consecutive naturals, for example, 36098 + ... + 37455.

It is an arithmetic number, because the mean of its divisors is an integer number (7208292).

Almost surely, 2^49942487 is an apocalyptic number.

49942487 is a deficient number, since it is larger than the sum of its proper divisors (7723849).

49942487 is an equidigital number, since it uses as much as digits as its factorization.

49942487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73657.

The product of its digits is 580608, while the sum is 47.

The square root of 49942487 is about 7066.9998584972. Note that the first 3 decimals coincide. The cubic root of 49942487 is about 368.2618425344.

The spelling of 49942487 in words is "forty-nine million, nine hundred forty-two thousand, four hundred eighty-seven".