799209487 has 2 divisors, whose sum is σ = 799209488. Its totient is φ = 799209486.

The previous prime is 799209469. The next prime is 799209503. The reversal of 799209487 is 784902997.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-799209487 is a prime.

It is a super-2 number, since 2×799209487² = 1277471608221606338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (799209427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399604743 + 399604744.

It is an arithmetic number, because the mean of its divisors is an integer number (399604744).

Almost surely, 2^799209487 is an apocalyptic number.

799209487 is a deficient number, since it is larger than the sum of its proper divisors (1).

799209487 is an equidigital number, since it uses as much as digits as its factorization.

799209487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2286144, while the sum is 55.

The square root of 799209487 is about 28270.2933660052. The cubic root of 799209487 is about 928.0118962599.

The spelling of 799209487 in words is "seven hundred ninety-nine million, two hundred nine thousand, four hundred eighty-seven".