4006670705 has 4 divisors (see below), whose sum is σ = 4808004852. Its totient is φ = 3205336560.

The previous prime is 4006670683. The next prime is 4006670713. The reversal of 4006670705 is 5070766004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2373540961 + 1633129744 = 48719^2 + 40412^2 .

It is a de Polignac number, because none of the positive numbers 2^k-4006670705 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400667066 + ... + 400667075.

It is an arithmetic number, because the mean of its divisors is an integer number (1202001213).

Almost surely, 2^4006670705 is an apocalyptic number.

It is an amenable number.

4006670705 is a deficient number, since it is larger than the sum of its proper divisors (801334147).

4006670705 is an equidigital number, since it uses as much as digits as its factorization.

4006670705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801334146.

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 4006670705 is about 63298.2677883052. The cubic root of 4006670705 is about 1588.2829855677.

The spelling of 4006670705 in words is "four billion, six million, six hundred seventy thousand, seven hundred five".