670483921 has 4 divisors (see below), whose sum is σ = 670594672. Its totient is φ = 670373172.

The previous prime is 670483909. The next prime is 670483937. The reversal of 670483921 is 129384076.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 670483921 - 2⁵ = 670483889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (670483991) 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, 45735 + ... + 58588.

It is an arithmetic number, because the mean of its divisors is an integer number (167648668).

Almost surely, 2^670483921 is an apocalyptic number.

It is an amenable number.

670483921 is a deficient number, since it is larger than the sum of its proper divisors (110751).

670483921 is a wasteful number, since it uses less digits than its factorization.

670483921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110750.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 670483921 is about 25893.7042734330. The cubic root of 670483921 is about 875.2446318989.

The spelling of 670483921 in words is "six hundred seventy million, four hundred eighty-three thousand, nine hundred twenty-one".