1397003087 has 2 divisors, whose sum is σ = 1397003088. Its totient is φ = 1397003086.

The previous prime is 1397003059. The next prime is 1397003089. The reversal of 1397003087 is 7803007931.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1397003087 is a prime.

Together with 1397003089, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1397003087.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1397003089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 698501543 + 698501544.

It is an arithmetic number, because the mean of its divisors is an integer number (698501544).

Almost surely, 2^1397003087 is an apocalyptic number.

1397003087 is a deficient number, since it is larger than the sum of its proper divisors (1).

1397003087 is an equidigital number, since it uses as much as digits as its factorization.

1397003087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 1397003087 is about 37376.5044780809. The cubic root of 1397003087 is about 1117.8901305237.

The spelling of 1397003087 in words is "one billion, three hundred ninety-seven million, three thousand, eighty-seven".