1098947870 has 8 divisors (see below), whose sum is σ = 1978106184. Its totient is φ = 439579144.

The previous prime is 1098947851. The next prime is 1098947921. The reversal of 1098947870 is 787498901.

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

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54947384 + ... + 54947403.

It is an arithmetic number, because the mean of its divisors is an integer number (247263273).

Almost surely, 2^1098947870 is an apocalyptic number.

1098947870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1098947870 is a deficient number, since it is larger than the sum of its proper divisors (879158314).

1098947870 is a wasteful number, since it uses less digits than its factorization.

1098947870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109894794.

The product of its (nonzero) digits is 1016064, while the sum is 53.

The square root of 1098947870 is about 33150.3826523918. The cubic root of 1098947870 is about 1031.9508914145.

The spelling of 1098947870 in words is "one billion, ninety-eight million, nine hundred forty-seven thousand, eight hundred seventy".