1987070 has 16 divisors (see below), whose sum is σ = 3611520. Its totient is φ = 787104.

The previous prime is 1987067. The next prime is 1987081. The reversal of 1987070 is 707891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179 + ... + 2001.

It is an arithmetic number, because the mean of its divisors is an integer number (225720).

2^1987070 is an apocalyptic number.

1987070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1987070 is a deficient number, since it is larger than the sum of its proper divisors (1624450).

1987070 is a wasteful number, since it uses less digits than its factorization.

1987070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1939.

The product of its (nonzero) digits is 3528, while the sum is 32.

The square root of 1987070 is about 1409.6347044536. The cubic root of 1987070 is about 125.7200047821.

The spelling of 1987070 in words is "one million, nine hundred eighty-seven thousand, seventy".