6412645 has 4 divisors (see below), whose sum is σ = 7695180. Its totient is φ = 5130112.

The previous prime is 6412643. The next prime is 6412657. The reversal of 6412645 is 5462146.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3849444 + 2563201 = 1962^2 + 1601^2 .

It is a cyclic number.

It is not a de Polignac number, because 6412645 - 2¹ = 6412643 is a prime.

It is a super-2 number, since 2×6412645² = 82244031792050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6412643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 641260 + ... + 641269.

It is an arithmetic number, because the mean of its divisors is an integer number (1923795).

Almost surely, 2^6412645 is an apocalyptic number.

It is an amenable number.

6412645 is a deficient number, since it is larger than the sum of its proper divisors (1282535).

6412645 is a wasteful number, since it uses less digits than its factorization.

6412645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1282534.

The product of its digits is 5760, while the sum is 28.

The square root of 6412645 is about 2532.3200824540. The cubic root of 6412645 is about 185.7857497579.

The spelling of 6412645 in words is "six million, four hundred twelve thousand, six hundred forty-five".