499791437 has 2 divisors, whose sum is σ = 499791438. Its totient is φ = 499791436.

The previous prime is 499791407. The next prime is 499791443. The reversal of 499791437 is 734197994.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 385493956 + 114297481 = 19634^2 + 10691^2 .

It is a cyclic number.

It is not a de Polignac number, because 499791437 - 2¹⁴ = 499775053 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 (499791407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249895718 + 249895719.

It is an arithmetic number, because the mean of its divisors is an integer number (249895719).

Almost surely, 2^499791437 is an apocalyptic number.

It is an amenable number.

499791437 is a deficient number, since it is larger than the sum of its proper divisors (1).

499791437 is an equidigital number, since it uses as much as digits as its factorization.

499791437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1714608, while the sum is 53.

The square root of 499791437 is about 22356.0156781122. The cubic root of 499791437 is about 793.5901529277.

The spelling of 499791437 in words is "four hundred ninety-nine million, seven hundred ninety-one thousand, four hundred thirty-seven".