1641348487 has 16 divisors (see below), whose sum is σ = 1761328800. Its totient is φ = 1524096000.

The previous prime is 1641348479. The next prime is 1641348503. The reversal of 1641348487 is 7848431461.

It is a cyclic number.

It is not a de Polignac number, because 1641348487 - 2³ = 1641348479 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 (1641348437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 463339 + ... + 466867.

It is an arithmetic number, because the mean of its divisors is an integer number (110083050).

Almost surely, 2^1641348487 is an apocalyptic number.

1641348487 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1641348487 is a deficient number, since it is larger than the sum of its proper divisors (119980313).

1641348487 is a wasteful number, since it uses less digits than its factorization.

1641348487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3906.

The product of its digits is 516096, while the sum is 46.

The square root of 1641348487 is about 40513.5592980918. The cubic root of 1641348487 is about 1179.5968379956.

The spelling of 1641348487 in words is "one billion, six hundred forty-one million, three hundred forty-eight thousand, four hundred eighty-seven".