673684331 has 8 divisors (see below), whose sum is σ = 678756624. Its totient is φ = 668622240.

The previous prime is 673684321. The next prime is 673684351. The reversal of 673684331 is 133486376.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-673684331 is a prime.

It is a super-2 number, since 2×673684331² = 907701155669835122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673684301) 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, 174401 + ... + 178221.

It is an arithmetic number, because the mean of its divisors is an integer number (84844578).

Almost surely, 2^673684331 is an apocalyptic number.

673684331 is a deficient number, since it is larger than the sum of its proper divisors (5072293).

673684331 is a wasteful number, since it uses less digits than its factorization.

673684331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5101.

The product of its digits is 217728, while the sum is 41.

The square root of 673684331 is about 25955.4297017021. The cubic root of 673684331 is about 876.6350189934.

The spelling of 673684331 in words is "six hundred seventy-three million, six hundred eighty-four thousand, three hundred thirty-one".