3640726007 has 8 divisors (see below), whose sum is σ = 3711944784. Its totient is φ = 3570084288.

The previous prime is 3640726003. The next prime is 3640726031. The reversal of 3640726007 is 7006270463.

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 3640726007 - 2² = 3640726003 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 (3640726003) 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, 131513 + ... + 156770.

It is an arithmetic number, because the mean of its divisors is an integer number (463993098).

Almost surely, 2^3640726007 is an apocalyptic number.

3640726007 is a deficient number, since it is larger than the sum of its proper divisors (71218777).

3640726007 is a wasteful number, since it uses less digits than its factorization.

3640726007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288529.

The product of its (nonzero) digits is 42336, while the sum is 35.

The square root of 3640726007 is about 60338.4289404356. The cubic root of 3640726007 is about 1538.3766002709.

The spelling of 3640726007 in words is "three billion, six hundred forty million, seven hundred twenty-six thousand, seven".