670306427 has 6 divisors (see below), whose sum is σ = 779744268. Its totient is φ = 574548324.

The previous prime is 670306363. The next prime is 670306451. The reversal of 670306427 is 724603076.

It is not a de Polignac number, because 670306427 - 2⁶ = 670306363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (670303427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6839813 + ... + 6839910.

It is an arithmetic number, because the mean of its divisors is an integer number (129957378).

Almost surely, 2^670306427 is an apocalyptic number.

670306427 is a deficient number, since it is larger than the sum of its proper divisors (109437841).

670306427 is a wasteful number, since it uses less digits than its factorization.

670306427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13679737 (or 13679730 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 35.

The square root of 670306427 is about 25890.2766883631. The cubic root of 670306427 is about 875.1673919750.

The spelling of 670306427 in words is "six hundred seventy million, three hundred six thousand, four hundred twenty-seven".