670470331 has 2 divisors, whose sum is σ = 670470332. Its totient is φ = 670470330.

The previous prime is 670470301. The next prime is 670470373. The reversal of 670470331 is 133074076.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 670470331 - 2¹⁷ = 670339259 is a prime.

It is a super-2 number, since 2×670470331² = 899060929502499122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 670470293 and 670470302.

It is not a weakly prime, because it can be changed into another prime (670470301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335235165 + 335235166.

It is an arithmetic number, because the mean of its divisors is an integer number (335235166).

Almost surely, 2^670470331 is an apocalyptic number.

670470331 is a deficient number, since it is larger than the sum of its proper divisors (1).

670470331 is an equidigital number, since it uses as much as digits as its factorization.

670470331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 31.

The square root of 670470331 is about 25893.4418531025. The cubic root of 670470331 is about 875.2387184313.

The spelling of 670470331 in words is "six hundred seventy million, four hundred seventy thousand, three hundred thirty-one".