6406761 has 8 divisors (see below), whose sum is σ = 8618400. Its totient is φ = 4233152.

The previous prime is 6406759. The next prime is 6406787. The reversal of 6406761 is 1676046.

6406761 = T₁₁₆ + T₁₁₇ + ... + T₃₄₁.

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

It is a cyclic number.

It is not a de Polignac number, because 6406761 - 2¹ = 6406759 is a prime.

It is a super-2 number, since 2×6406761² = 82093173022242, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6406721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9111 + ... + 9788.

It is an arithmetic number, because the mean of its divisors is an integer number (1077300).

Almost surely, 2^6406761 is an apocalyptic number.

It is an amenable number.

6406761 is a deficient number, since it is larger than the sum of its proper divisors (2211639).

6406761 is a wasteful number, since it uses less digits than its factorization.

6406761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19015.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 6406761 is about 2531.1580353664. The cubic root of 6406761 is about 185.7289090486.

The spelling of 6406761 in words is "six million, four hundred six thousand, seven hundred sixty-one".