683049971 has 4 divisors (see below), whose sum is σ = 689812944. Its totient is φ = 676287000.

The previous prime is 683049949. The next prime is 683049973. The reversal of 683049971 is 179940386.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 179940386 = 2 ⋅89970193.

It is a cyclic number.

It is not a de Polignac number, because 683049971 - 2⁶ = 683049907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (683049973) 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, 3381335 + ... + 3381536.

It is an arithmetic number, because the mean of its divisors is an integer number (172453236).

Almost surely, 2^683049971 is an apocalyptic number.

683049971 is a deficient number, since it is larger than the sum of its proper divisors (6762973).

683049971 is a wasteful number, since it uses less digits than its factorization.

683049971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6762972.

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

The square root of 683049971 is about 26135.2247168453. The cubic root of 683049971 is about 880.6786994733.

The spelling of 683049971 in words is "six hundred eighty-three million, forty-nine thousand, nine hundred seventy-one".