671533933 has 8 divisors (see below), whose sum is σ = 780049280. Its totient is φ = 566164080.

The previous prime is 671533913. The next prime is 671533939. The reversal of 671533933 is 339335176.

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 671533933 - 2¹⁷ = 671402861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671533939) 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, 785913 + ... + 786766.

It is an arithmetic number, because the mean of its divisors is an integer number (97506160).

Almost surely, 2^671533933 is an apocalyptic number.

It is an amenable number.

671533933 is a deficient number, since it is larger than the sum of its proper divisors (108515347).

671533933 is a wasteful number, since it uses less digits than its factorization.

671533933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1572747.

The product of its digits is 153090, while the sum is 40.

The square root of 671533933 is about 25913.9717719998. The cubic root of 671533933 is about 875.7012861710.

The spelling of 671533933 in words is "six hundred seventy-one million, five hundred thirty-three thousand, nine hundred thirty-three".