499319797 has 4 divisors (see below), whose sum is σ = 499883616. Its totient is φ = 498755980.

The previous prime is 499319761. The next prime is 499319803. The reversal of 499319797 is 797913994.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 499319797 - 2¹⁵ = 499287029 is a prime.

It is a super-2 number, since 2×499319797² = 498640519352242418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499319707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280579 + ... + 282352.

It is an arithmetic number, because the mean of its divisors is an integer number (124970904).

Almost surely, 2^499319797 is an apocalyptic number.

It is an amenable number.

499319797 is a deficient number, since it is larger than the sum of its proper divisors (563819).

499319797 is an equidigital number, since it uses as much as digits as its factorization.

499319797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563818.

The product of its digits is 3857868, while the sum is 58.

The square root of 499319797 is about 22345.4647971350. The cubic root of 499319797 is about 793.3404443297.

The spelling of 499319797 in words is "four hundred ninety-nine million, three hundred nineteen thousand, seven hundred ninety-seven".