498921677 has 2 divisors, whose sum is σ = 498921678. Its totient is φ = 498921676.

The previous prime is 498921673. The next prime is 498921697. The reversal of 498921677 is 776129894.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 367910761 + 131010916 = 19181^2 + 11446^2 .

It is a cyclic number.

It is not a de Polignac number, because 498921677 - 2² = 498921673 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (498921673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249460838 + 249460839.

It is an arithmetic number, because the mean of its divisors is an integer number (249460839).

Almost surely, 2^498921677 is an apocalyptic number.

It is an amenable number.

498921677 is a deficient number, since it is larger than the sum of its proper divisors (1).

498921677 is an equidigital number, since it uses as much as digits as its factorization.

498921677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1524096, while the sum is 53.

The square root of 498921677 is about 22336.5547253823. The cubic root of 498921677 is about 793.1295382929.

The spelling of 498921677 in words is "four hundred ninety-eight million, nine hundred twenty-one thousand, six hundred seventy-seven".