1704401861 has 4 divisors (see below), whose sum is σ = 1804660812. Its totient is φ = 1604142912.

The previous prime is 1704401851. The next prime is 1704401903. The reversal of 1704401861 is 1681044071.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1681044071 = 7 ⋅240149153.

It can be written as a sum of positive squares in 2 ways, for example, as 1308630625 + 395771236 = 36175^2 + 19894^2 .

It is a cyclic number.

It is not a de Polignac number, because 1704401861 - 2¹⁰ = 1704400837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1704401801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50129450 + ... + 50129483.

It is an arithmetic number, because the mean of its divisors is an integer number (451165203).

Almost surely, 2^1704401861 is an apocalyptic number.

It is an amenable number.

1704401861 is a deficient number, since it is larger than the sum of its proper divisors (100258951).

1704401861 is a wasteful number, since it uses less digits than its factorization.

1704401861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100258950.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 1704401861 is about 41284.4021514179. The cubic root of 1704401861 is about 1194.5124113860.

The spelling of 1704401861 in words is "one billion, seven hundred four million, four hundred one thousand, eight hundred sixty-one".