499974649 has 2 divisors, whose sum is σ = 499974650. Its totient is φ = 499974648.

The previous prime is 499974637. The next prime is 499974659. The reversal of 499974649 is 946479994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 291316624 + 208658025 = 17068^2 + 14445^2 .

It is a cyclic number.

It is not a de Polignac number, because 499974649 - 2⁵ = 499974617 is a prime.

It is not a weakly prime, because it can be changed into another prime (499974659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249987324 + 249987325.

It is an arithmetic number, because the mean of its divisors is an integer number (249987325).

Almost surely, 2^499974649 is an apocalyptic number.

It is an amenable number.

499974649 is a deficient number, since it is larger than the sum of its proper divisors (1).

499974649 is an equidigital number, since it uses as much as digits as its factorization.

499974649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17635968, while the sum is 61.

The square root of 499974649 is about 22360.1129022194. The cubic root of 499974649 is about 793.6871116894.

The spelling of 499974649 in words is "four hundred ninety-nine million, nine hundred seventy-four thousand, six hundred forty-nine".