1098788247 has 10 divisors (see below), whose sum is σ = 1641399848. Its totient is φ = 732525444.

The previous prime is 1098788239. The next prime is 1098788287. The reversal of 1098788247 is 7428878901.

It is a happy number.

It is not a de Polignac number, because 1098788247 - 2³ = 1098788239 is a prime.

It is a super-2 number, since 2×1098788247² = 2414671223490666018, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1098788193 and 1098788202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1098788287) 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 in 9 ways as a sum of consecutive naturals, for example, 6782563 + ... + 6782724.

Almost surely, 2^1098788247 is an apocalyptic number.

1098788247 is a deficient number, since it is larger than the sum of its proper divisors (542611601).

1098788247 is an equidigital number, since it uses as much as digits as its factorization.

1098788247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13565299 (or 13565290 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 54.

The square root of 1098788247 is about 33147.9750060241. The cubic root of 1098788247 is about 1031.9009251157.

The spelling of 1098788247 in words is "one billion, ninety-eight million, seven hundred eighty-eight thousand, two hundred forty-seven".