49429817 has 4 divisors (see below), whose sum is σ = 50765796. Its totient is φ = 48093840.

The previous prime is 49429813. The next prime is 49429847. The reversal of 49429817 is 71892494.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71892494 = 2 ⋅35946247.

It can be written as a sum of positive squares in 2 ways, for example, as 47045881 + 2383936 = 6859^2 + 1544^2 .

It is a cyclic number.

It is not a de Polignac number, because 49429817 - 2² = 49429813 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49429813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 667934 + ... + 668007.

It is an arithmetic number, because the mean of its divisors is an integer number (12691449).

Almost surely, 2^49429817 is an apocalyptic number.

It is an amenable number.

49429817 is a deficient number, since it is larger than the sum of its proper divisors (1335979).

49429817 is a wasteful number, since it uses less digits than its factorization.

49429817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335978.

The product of its digits is 145152, while the sum is 44.

The square root of 49429817 is about 7030.6341819213. The cubic root of 49429817 is about 366.9974113021.

The spelling of 49429817 in words is "forty-nine million, four hundred twenty-nine thousand, eight hundred seventeen".