4007913947 has 2 divisors, whose sum is σ = 4007913948. Its totient is φ = 4007913946.

The previous prime is 4007913887. The next prime is 4007913971. The reversal of 4007913947 is 7493197004.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4007913947 - 2²⁶ = 3940805083 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4007913898 and 4007913907.

It is not a weakly prime, because it can be changed into another prime (4007913347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2003956973 + 2003956974.

It is an arithmetic number, because the mean of its divisors is an integer number (2003956974).

Almost surely, 2^4007913947 is an apocalyptic number.

4007913947 is a deficient number, since it is larger than the sum of its proper divisors (1).

4007913947 is an equidigital number, since it uses as much as digits as its factorization.

4007913947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 4007913947 is about 63308.0875323209. The cubic root of 4007913947 is about 1588.4472462935.

The spelling of 4007913947 in words is "four billion, seven million, nine hundred thirteen thousand, nine hundred forty-seven".