1387461 has 8 divisors (see below), whose sum is σ = 1867360. Its totient is φ = 916272.

The previous prime is 1387433. The next prime is 1387499. The reversal of 1387461 is 1647831.

It is a happy number.

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

It is not a de Polignac number, because 1387461 - 2⁹ = 1386949 is a prime.

It is a Duffinian number.

1387461 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1387261) 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 7 ways as a sum of consecutive naturals, for example, 1795 + ... + 2448.

It is an arithmetic number, because the mean of its divisors is an integer number (233420).

2^1387461 is an apocalyptic number.

It is an amenable number.

1387461 is a deficient number, since it is larger than the sum of its proper divisors (479899).

1387461 is a wasteful number, since it uses less digits than its factorization.

1387461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4355.

The product of its digits is 4032, while the sum is 30.

The square root of 1387461 is about 1177.9053442446. The cubic root of 1387461 is about 111.5339102018.

The spelling of 1387461 in words is "one million, three hundred eighty-seven thousand, four hundred sixty-one".