1098782427 has 8 divisors (see below), whose sum is σ = 1528740864. Its totient is φ = 700672808.

The previous prime is 1098782423. The next prime is 1098782449. The reversal of 1098782427 is 7242878901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1098782427 - 2² = 1098782423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1098782423) 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 7 ways as a sum of consecutive naturals, for example, 7962123 + ... + 7962260.

It is an arithmetic number, because the mean of its divisors is an integer number (191092608).

Almost surely, 2^1098782427 is an apocalyptic number.

1098782427 is a deficient number, since it is larger than the sum of its proper divisors (429958437).

1098782427 is a wasteful number, since it uses less digits than its factorization.

1098782427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15924409.

The product of its (nonzero) digits is 451584, while the sum is 48.

The square root of 1098782427 is about 33147.8872177398. The cubic root of 1098782427 is about 1031.8991032075.

The spelling of 1098782427 in words is "one billion, ninety-eight million, seven hundred eighty-two thousand, four hundred twenty-seven".