499973731 has 2 divisors, whose sum is σ = 499973732. Its totient is φ = 499973730.

The previous prime is 499973713. The next prime is 499973737. The reversal of 499973731 is 137379994.

It is a happy number.

Together with previous prime (499973713) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 499973731 - 2⁷ = 499973603 is a prime.

It is a super-2 number, since 2×499973731² = 499947463380120722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (499973737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249986865 + 249986866.

It is an arithmetic number, because the mean of its divisors is an integer number (249986866).

Almost surely, 2^499973731 is an apocalyptic number.

499973731 is a deficient number, since it is larger than the sum of its proper divisors (1).

499973731 is an equidigital number, since it uses as much as digits as its factorization.

499973731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1285956, while the sum is 52.

The square root of 499973731 is about 22360.0923745856. The cubic root of 499973731 is about 793.6866259279.

The spelling of 499973731 in words is "four hundred ninety-nine million, nine hundred seventy-three thousand, seven hundred thirty-one".