992400247 has 2 divisors, whose sum is σ = 992400248. Its totient is φ = 992400246.

The previous prime is 992400223. The next prime is 992400263. The reversal of 992400247 is 742004299.

It is a strong prime.

It is an emirp because it is prime and its reverse (742004299) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 992400247 - 2¹⁵ = 992367479 is a prime.

It is a super-2 number, since 2×992400247² = 1969716500491322018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (992400217) 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, 496200123 + 496200124.

It is an arithmetic number, because the mean of its divisors is an integer number (496200124).

Almost surely, 2^992400247 is an apocalyptic number.

992400247 is a deficient number, since it is larger than the sum of its proper divisors (1).

992400247 is an equidigital number, since it uses as much as digits as its factorization.

992400247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 992400247 is about 31502.3847827430. The cubic root of 992400247 is about 997.4603044067.

The spelling of 992400247 in words is "nine hundred ninety-two million, four hundred thousand, two hundred forty-seven".