1987067 has 2 divisors, whose sum is σ = 1987068. Its totient is φ = 1987066.

The previous prime is 1987057. The next prime is 1987081. The reversal of 1987067 is 7607891.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1987067 - 2⁶ = 1987003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1987067.

It is not a weakly prime, because it can be changed into another prime (1987057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 993533 + 993534.

It is an arithmetic number, because the mean of its divisors is an integer number (993534).

2^1987067 is an apocalyptic number.

1987067 is a deficient number, since it is larger than the sum of its proper divisors (1).

1987067 is an equidigital number, since it uses as much as digits as its factorization.

1987067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 1987067 is about 1409.6336403477. The cubic root of 1987067 is about 125.7199415131.

The spelling of 1987067 in words is "one million, nine hundred eighty-seven thousand, sixty-seven".