981284345 has 8 divisors (see below), whose sum is σ = 1195116864. Its totient is φ = 773310384.

The previous prime is 981284333. The next prime is 981284357. The reversal of 981284345 is 543482189.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (981284333) and next prime (981284357).

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 981284345 - 2¹² = 981280249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 981284296 and 981284305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1464269 + ... + 1464938.

It is an arithmetic number, because the mean of its divisors is an integer number (149389608).

Almost surely, 2^981284345 is an apocalyptic number.

It is an amenable number.

981284345 is a deficient number, since it is larger than the sum of its proper divisors (213832519).

981284345 is a wasteful number, since it uses less digits than its factorization.

981284345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2929279.

The product of its digits is 276480, while the sum is 44.

The square root of 981284345 is about 31325.4584164382. The cubic root of 981284345 is about 993.7221190179.

The spelling of 981284345 in words is "nine hundred eighty-one million, two hundred eighty-four thousand, three hundred forty-five".