49966869 has 8 divisors (see below), whose sum is σ = 67714912. Its totient is φ = 32765040.

The previous prime is 49966853. The next prime is 49966871. The reversal of 49966869 is 96866994.

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

It is not a de Polignac number, because 49966869 - 2⁴ = 49966853 is a prime.

It is a super-2 number, since 2×49966869² = 4993375995326322, 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 (49966849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136339 + ... + 136704.

It is an arithmetic number, because the mean of its divisors is an integer number (8464364).

Almost surely, 2^49966869 is an apocalyptic number.

It is an amenable number.

49966869 is a deficient number, since it is larger than the sum of its proper divisors (17748043).

49966869 is a wasteful number, since it uses less digits than its factorization.

49966869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273107.

The product of its digits is 5038848, while the sum is 57.

The square root of 49966869 is about 7068.7247081776. The cubic root of 49966869 is about 368.3217614531.

The spelling of 49966869 in words is "forty-nine million, nine hundred sixty-six thousand, eight hundred sixty-nine".