670965407 has 32 divisors (see below), whose sum is σ = 822804480. Its totient is φ = 534774240.

The previous prime is 670965391. The next prime is 670965433. The reversal of 670965407 is 704569076.

It is not a de Polignac number, because 670965407 - 2⁴ = 670965391 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 (670965307) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 902678 + ... + 903420.

It is an arithmetic number, because the mean of its divisors is an integer number (25712640).

Almost surely, 2^670965407 is an apocalyptic number.

670965407 is a deficient number, since it is larger than the sum of its proper divisors (151839073).

670965407 is a wasteful number, since it uses less digits than its factorization.

670965407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923.

The product of its (nonzero) digits is 317520, while the sum is 44.

The square root of 670965407 is about 25902.9999613944. Note that the first 4 decimals coincide. The cubic root of 670965407 is about 875.4540911606.

The spelling of 670965407 in words is "six hundred seventy million, nine hundred sixty-five thousand, four hundred seven".