1573985 has 8 divisors (see below), whose sum is σ = 2158656. Its totient is φ = 1079280.

The previous prime is 1573973. The next prime is 1573997. The reversal of 1573985 is 5893751.

It is an interprime number because it is at equal distance from previous prime (1573973) and next prime (1573997).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1573985 - 2⁴ = 1573969 is a prime.

It is a Duffinian number.

It is a Curzon 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, 22451 + ... + 22520.

It is an arithmetic number, because the mean of its divisors is an integer number (269832).

2^1573985 is an apocalyptic number.

It is an amenable number.

1573985 is a deficient number, since it is larger than the sum of its proper divisors (584671).

1573985 is an equidigital number, since it uses as much as digits as its factorization.

1573985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44983.

The product of its digits is 37800, while the sum is 38.

The square root of 1573985 is about 1254.5855889496. The cubic root of 1573985 is about 116.3233398549.

The spelling of 1573985 in words is "one million, five hundred seventy-three thousand, nine hundred eighty-five".