1098423967 has 8 divisors (see below), whose sum is σ = 1108267616. Its totient is φ = 1088616672.

The previous prime is 1098423959. The next prime is 1098423973. The reversal of 1098423967 is 7693248901.

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 1098423967 - 2³ = 1098423959 is a prime.

It is a super-2 number, since 2×1098423967² = 2413070422560034178, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1098423967.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1098423947) 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, 53518 + ... + 71140.

It is an arithmetic number, because the mean of its divisors is an integer number (138533452).

Almost surely, 2^1098423967 is an apocalyptic number.

1098423967 is a deficient number, since it is larger than the sum of its proper divisors (9843649).

1098423967 is a wasteful number, since it uses less digits than its factorization.

1098423967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18177.

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 1098423967 is about 33142.4797955735. The cubic root of 1098423967 is about 1031.7868775369.

The spelling of 1098423967 in words is "one billion, ninety-eight million, four hundred twenty-three thousand, nine hundred sixty-seven".