670925 has 12 divisors (see below), whose sum is σ = 851136. Its totient is φ = 524400.

The previous prime is 670919. The next prime is 670931. The reversal of 670925 is 529076.

It is an interprime number because it is at equal distance from previous prime (670919) and next prime (670931).

It is not a de Polignac number, because 670925 - 2⁸ = 670669 is a prime.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 670925.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 890 + ... + 1460.

It is an arithmetic number, because the mean of its divisors is an integer number (70928).

2⁶⁷⁰⁹²⁵ is an apocalyptic number.

It is an amenable number.

670925 is a deficient number, since it is larger than the sum of its proper divisors (180211).

670925 is a wasteful number, since it uses less digits than its factorization.

670925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628 (or 623 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 670925 is about 819.1001159809. The cubic root of 670925 is about 87.5436516890.

The spelling of 670925 in words is "six hundred seventy thousand, nine hundred twenty-five".