434481977 has 2 divisors, whose sum is σ = 434481978. Its totient is φ = 434481976.

The previous prime is 434481967. The next prime is 434481997. The reversal of 434481977 is 779184434.

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., 304886521 + 129595456 = 17461^2 + 11384^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-434481977 is a prime.

It is not a weakly prime, because it can be changed into another prime (434481917) 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 as a sum of consecutive naturals, namely, 217240988 + 217240989.

It is an arithmetic number, because the mean of its divisors is an integer number (217240989).

Almost surely, 2^434481977 is an apocalyptic number.

It is an amenable number.

434481977 is a deficient number, since it is larger than the sum of its proper divisors (1).

434481977 is an equidigital number, since it uses as much as digits as its factorization.

434481977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 677376, while the sum is 47.

The square root of 434481977 is about 20844.2312643091. The cubic root of 434481977 is about 757.3975953963.

The spelling of 434481977 in words is "four hundred thirty-four million, four hundred eighty-one thousand, nine hundred seventy-seven".