981674965 has 8 divisors (see below), whose sum is σ = 1178370360. Its totient is φ = 785099712.

The previous prime is 981674963. The next prime is 981674977. The reversal of 981674965 is 569476189.

It can be written as a sum of positive squares in 4 ways, for example, as 13593969 + 968080996 = 3687^2 + 31114^2 .

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 981674965 - 2¹ = 981674963 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981674963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10954 + ... + 45643.

It is an arithmetic number, because the mean of its divisors is an integer number (147296295).

Almost surely, 2^981674965 is an apocalyptic number.

It is an amenable number.

981674965 is a deficient number, since it is larger than the sum of its proper divisors (196695395).

981674965 is a wasteful number, since it uses less digits than its factorization.

981674965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60071.

The product of its digits is 3265920, while the sum is 55.

The square root of 981674965 is about 31331.6926609464. The cubic root of 981674965 is about 993.8539585611.

The spelling of 981674965 in words is "nine hundred eighty-one million, six hundred seventy-four thousand, nine hundred sixty-five".