494375977 has 2 divisors, whose sum is σ = 494375978. Its totient is φ = 494375976.

The previous prime is 494375951. The next prime is 494376011. The reversal of 494375977 is 779573494.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 395651881 + 98724096 = 19891^2 + 9936^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-494375977 is a prime.

It is not a weakly prime, because it can be changed into another prime (494375377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247187988 + 247187989.

It is an arithmetic number, because the mean of its divisors is an integer number (247187989).

Almost surely, 2^494375977 is an apocalyptic number.

It is an amenable number.

494375977 is a deficient number, since it is larger than the sum of its proper divisors (1).

494375977 is an equidigital number, since it uses as much as digits as its factorization.

494375977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6667920, while the sum is 55.

The square root of 494375977 is about 22234.5671646650. The cubic root of 494375977 is about 790.7134381888.

The spelling of 494375977 in words is "four hundred ninety-four million, three hundred seventy-five thousand, nine hundred seventy-seven".