983047691 has 4 divisors (see below), whose sum is σ = 990788352. Its totient is φ = 975307032.

The previous prime is 983047679. The next prime is 983047733. The reversal of 983047691 is 196740389.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 196740389 = 2887 ⋅68147.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-983047691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (983047291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3870140 + ... + 3870393.

It is an arithmetic number, because the mean of its divisors is an integer number (247697088).

Almost surely, 2^983047691 is an apocalyptic number.

983047691 is a deficient number, since it is larger than the sum of its proper divisors (7740661).

983047691 is a wasteful number, since it uses less digits than its factorization.

983047691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7740660.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 983047691 is about 31353.5913572911. The cubic root of 983047691 is about 994.3169949676.

The spelling of 983047691 in words is "nine hundred eighty-three million, forty-seven thousand, six hundred ninety-one".