1970587 has 4 divisors (see below), whose sum is σ = 1979496. Its totient is φ = 1961680.

The previous prime is 1970581. The next prime is 1970597. The reversal of 1970587 is 7850791.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7850791 = 13 ⋅603907.

It is a cyclic number.

It is not a de Polignac number, because 1970587 - 2⁷ = 1970459 is a prime.

It is an Ulam number.

It is a Duffinian number.

1970587 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1970581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4114 + ... + 4567.

It is an arithmetic number, because the mean of its divisors is an integer number (494874).

2^1970587 is an apocalyptic number.

1970587 is a deficient number, since it is larger than the sum of its proper divisors (8909).

1970587 is an equidigital number, since it uses as much as digits as its factorization.

1970587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8908.

The product of its (nonzero) digits is 17640, while the sum is 37.

The square root of 1970587 is about 1403.7759792787. The cubic root of 1970587 is about 125.3714179632.

The spelling of 1970587 in words is "one million, nine hundred seventy thousand, five hundred eighty-seven".