49861247 has 4 divisors (see below), whose sum is σ = 50018856. Its totient is φ = 49703640.

The previous prime is 49861243. The next prime is 49861261. The reversal of 49861247 is 74216894.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 49861247 - 2² = 49861243 is a prime.

It is a super-2 number, since 2×49861247² = 4972287904790018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49861243) 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 3 ways as a sum of consecutive naturals, for example, 78329 + ... + 78962.

It is an arithmetic number, because the mean of its divisors is an integer number (12504714).

Almost surely, 2^49861247 is an apocalyptic number.

49861247 is a deficient number, since it is larger than the sum of its proper divisors (157609).

49861247 is a wasteful number, since it uses less digits than its factorization.

49861247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157608.

The product of its digits is 96768, while the sum is 41.

The square root of 49861247 is about 7061.2496769340. The cubic root of 49861247 is about 368.0620538669.

The spelling of 49861247 in words is "forty-nine million, eight hundred sixty-one thousand, two hundred forty-seven".