6481377 has 60 divisors (see below), whose sum is σ = 11918016. Its totient is φ = 3492720.

The previous prime is 6481367. The next prime is 6481381. The reversal of 6481377 is 7731846.

6481377 is a `hidden beast` number, since 648 + 1 + 3 + 7 + 7 = 666.

6481377 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6481377 - 2⁶ = 6481313 is a prime.

It is a super-2 number, since 2×6481377² = 84016495632258, which contains 22 as substring.

6481377 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6481367) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 91252 + ... + 91322.

Almost surely, 2^6481377 is an apocalyptic number.

It is an amenable number.

6481377 is a deficient number, since it is larger than the sum of its proper divisors (5436639).

6481377 is a wasteful number, since it uses less digits than its factorization.

6481377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 104 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 6481377 is about 2545.8548662483. The cubic root of 6481377 is about 186.4471551601.

It can be divided in two parts, 648 and 1377, that added together give a square (2025 = 45²).

The spelling of 6481377 in words is "six million, four hundred eighty-one thousand, three hundred seventy-seven".