6451946 has 4 divisors (see below), whose sum is σ = 9677922. Its totient is φ = 3225972.

The previous prime is 6451943. The next prime is 6451967. The reversal of 6451946 is 6491546.

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

It can be written as a sum of positive squares in only one way, i.e., 4363921 + 2088025 = 2089^2 + 1445^2 .

It is not an unprimeable number, because it can be changed into a prime (6451943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1612985 + ... + 1612988.

Almost surely, 2^6451946 is an apocalyptic number.

6451946 is a deficient number, since it is larger than the sum of its proper divisors (3225976).

6451946 is a wasteful number, since it uses less digits than its factorization.

6451946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3225975.

The product of its digits is 25920, while the sum is 35.

The square root of 6451946 is about 2540.0681093231. The cubic root of 6451946 is about 186.1645170232.

The spelling of 6451946 in words is "six million, four hundred fifty-one thousand, nine hundred forty-six".