1486397621 has 4 divisors (see below), whose sum is σ = 1488030144. Its totient is φ = 1484765100.

The previous prime is 1486397617. The next prime is 1486397629. The reversal of 1486397621 is 1267936841.

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.

It is a cyclic number.

It is not a de Polignac number, because 1486397621 - 2² = 1486397617 is a prime.

It is a super-3 number, since 3×1486397621³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1486397629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 814895 + ... + 816716.

It is an arithmetic number, because the mean of its divisors is an integer number (372007536).

Almost surely, 2^1486397621 is an apocalyptic number.

It is an amenable number.

1486397621 is a deficient number, since it is larger than the sum of its proper divisors (1632523).

1486397621 is an equidigital number, since it uses as much as digits as its factorization.

1486397621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1632522.

The product of its digits is 435456, while the sum is 47.

The square root of 1486397621 is about 38553.8275791133. The cubic root of 1486397621 is about 1141.2435442652.

The spelling of 1486397621 in words is "one billion, four hundred eighty-six million, three hundred ninety-seven thousand, six hundred twenty-one".