1373887 has 2 divisors, whose sum is σ = 1373888. Its totient is φ = 1373886.

The previous prime is 1373881. The next prime is 1373891. The reversal of 1373887 is 7883731.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1373887 - 2¹⁹ = 849599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1373881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686943 + 686944.

It is an arithmetic number, because the mean of its divisors is an integer number (686944).

2^1373887 is an apocalyptic number.

1373887 is a deficient number, since it is larger than the sum of its proper divisors (1).

1373887 is an equidigital number, since it uses as much as digits as its factorization.

1373887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28224, while the sum is 37.

The square root of 1373887 is about 1172.1292590837. The cubic root of 1373887 is about 111.1689929161.

The spelling of 1373887 in words is "one million, three hundred seventy-three thousand, eight hundred eighty-seven".