1463861 has 4 divisors (see below), whose sum is σ = 1672992. Its totient is φ = 1254732.

The previous prime is 1463857. The next prime is 1463863. The reversal of 1463861 is 1683641.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1683641 = 31 ⋅54311.

It is a cyclic number.

It is not a de Polignac number, because 1463861 - 2² = 1463857 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 (1463863) 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, 104555 + ... + 104568.

It is an arithmetic number, because the mean of its divisors is an integer number (418248).

2^1463861 is an apocalyptic number.

It is an amenable number.

1463861 is a deficient number, since it is larger than the sum of its proper divisors (209131).

1463861 is an equidigital number, since it uses as much as digits as its factorization.

1463861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209130.

The product of its digits is 3456, while the sum is 29.

The square root of 1463861 is about 1209.9012356387. The cubic root of 1463861 is about 113.5446336776.

The spelling of 1463861 in words is "one million, four hundred sixty-three thousand, eight hundred sixty-one".