681417 has 12 divisors (see below), whose sum is σ = 1073904. Its totient is φ = 412920.

The previous prime is 681409. The next prime is 681419. The reversal of 681417 is 714186.

It is a happy number.

681417 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 681417 - 2³ = 681409 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 681417.

It is not an unprimeable number, because it can be changed into a prime (681419) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3343 + ... + 3540.

It is an arithmetic number, because the mean of its divisors is an integer number (89492).

2⁶⁸¹⁴¹⁷ is an apocalyptic number.

It is an amenable number.

681417 is a deficient number, since it is larger than the sum of its proper divisors (392487).

681417 is a wasteful number, since it uses less digits than its factorization.

681417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6900 (or 6897 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 681417 is about 825.4798604448. The cubic root of 681417 is about 87.9976325121.

It can be divided in two parts, 68 and 1417, that added together give a triangular number (1485 = T₅₄).

The spelling of 681417 in words is "six hundred eighty-one thousand, four hundred seventeen".