49430977 has 2 divisors, whose sum is σ = 49430978. Its totient is φ = 49430976.

The previous prime is 49430939. The next prime is 49431017. The reversal of 49430977 is 77903494.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44408896 + 5022081 = 6664^2 + 2241^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49430977 is a prime.

It is not a weakly prime, because it can be changed into another prime (49430477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24715488 + 24715489.

It is an arithmetic number, because the mean of its divisors is an integer number (24715489).

Almost surely, 2^49430977 is an apocalyptic number.

It is an amenable number.

49430977 is a deficient number, since it is larger than the sum of its proper divisors (1).

49430977 is an equidigital number, since it uses as much as digits as its factorization.

49430977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 49430977 is about 7030.7166775514. The cubic root of 49430977 is about 367.0002821312. Note that the first 3 decimals are identical.

The spelling of 49430977 in words is "forty-nine million, four hundred thirty thousand, nine hundred seventy-seven".