1670407005 has 8 divisors (see below), whose sum is σ = 2672651232. Its totient is φ = 890883728.

The previous prime is 1670407001. The next prime is 1670407009. The reversal of 1670407005 is 5007040761.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1670407001) and next prime (1670407009).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1670407005 - 2² = 1670407001 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1670407001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55680219 + ... + 55680248.

It is an arithmetic number, because the mean of its divisors is an integer number (334081404).

Almost surely, 2^1670407005 is an apocalyptic number.

1670407005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1670407005 is a deficient number, since it is larger than the sum of its proper divisors (1002244227).

1670407005 is a wasteful number, since it uses less digits than its factorization.

1670407005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111360475.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 1670407005 is about 40870.6129755843. The cubic root of 1670407005 is about 1186.5173711289.

Adding to 1670407005 its reverse (5007040761), we get a palindrome (6677447766).

The spelling of 1670407005 in words is "one billion, six hundred seventy million, four hundred seven thousand, five".