1372328887 has 2 divisors, whose sum is σ = 1372328888. Its totient is φ = 1372328886.

The previous prime is 1372328861. The next prime is 1372328929. The reversal of 1372328887 is 7888232731.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1372328887 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1372328887.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1372329887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686164443 + 686164444.

It is an arithmetic number, because the mean of its divisors is an integer number (686164444).

Almost surely, 2^1372328887 is an apocalyptic number.

1372328887 is a deficient number, since it is larger than the sum of its proper divisors (1).

1372328887 is an equidigital number, since it uses as much as digits as its factorization.

1372328887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 903168, while the sum is 49.

The square root of 1372328887 is about 37044.9576460819. The cubic root of 1372328887 is about 1111.2695176463.

The spelling of 1372328887 in words is "one billion, three hundred seventy-two million, three hundred twenty-eight thousand, eight hundred eighty-seven".