3940023007 has 2 divisors, whose sum is σ = 3940023008. Its totient is φ = 3940023006.

The previous prime is 3940022993. The next prime is 3940023067. The reversal of 3940023007 is 7003200493.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3940023007 - 2¹⁵ = 3939990239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3940023067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1970011503 + 1970011504.

It is an arithmetic number, because the mean of its divisors is an integer number (1970011504).

Almost surely, 2^3940023007 is an apocalyptic number.

3940023007 is a deficient number, since it is larger than the sum of its proper divisors (1).

3940023007 is an equidigital number, since it uses as much as digits as its factorization.

3940023007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 3940023007 is about 62769.6025716270. The cubic root of 3940023007 is about 1579.4271018883.

The spelling of 3940023007 in words is "three billion, nine hundred forty million, twenty-three thousand, seven".