49817977 has 16 divisors (see below), whose sum is σ = 57028608. Its totient is φ = 43076880.

The previous prime is 49817941. The next prime is 49817983. The reversal of 49817977 is 77971894.

It is not a de Polignac number, because 49817977 - 2⁷ = 49817849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49817987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55978 + ... + 56860.

It is an arithmetic number, because the mean of its divisors is an integer number (3564288).

Almost surely, 2^49817977 is an apocalyptic number.

It is an amenable number.

49817977 is a deficient number, since it is larger than the sum of its proper divisors (7210631).

49817977 is a wasteful number, since it uses less digits than its factorization.

49817977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140.

The product of its digits is 889056, while the sum is 52.

The square root of 49817977 is about 7058.1851066687. The cubic root of 49817977 is about 367.9555539619.

The spelling of 49817977 in words is "forty-nine million, eight hundred seventeen thousand, nine hundred seventy-seven".