3123987407 has 2 divisors, whose sum is σ = 3123987408. Its totient is φ = 3123987406.

The previous prime is 3123987379. The next prime is 3123987431. The reversal of 3123987407 is 7047893213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3123987407 - 2²⁰ = 3122938831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3123987437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1561993703 + 1561993704.

It is an arithmetic number, because the mean of its divisors is an integer number (1561993704).

Almost surely, 2^3123987407 is an apocalyptic number.

3123987407 is a deficient number, since it is larger than the sum of its proper divisors (1).

3123987407 is an equidigital number, since it uses as much as digits as its factorization.

3123987407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 3123987407 is about 55892.6417965728. The cubic root of 3123987407 is about 1461.8509405864.

The spelling of 3123987407 in words is "three billion, one hundred twenty-three million, nine hundred eighty-seven thousand, four hundred seven".