6428746 has 4 divisors (see below), whose sum is σ = 9643122. Its totient is φ = 3214372.

The previous prime is 6428743. The next prime is 6428761. The reversal of 6428746 is 6478246.

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., 4060225 + 2368521 = 2015^2 + 1539^2 .

It is not an unprimeable number, because it can be changed into a prime (6428743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1607185 + ... + 1607188.

Almost surely, 2^6428746 is an apocalyptic number.

6428746 is a deficient number, since it is larger than the sum of its proper divisors (3214376).

6428746 is a wasteful number, since it uses less digits than its factorization.

6428746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3214375.

The product of its digits is 64512, while the sum is 37.

The square root of 6428746 is about 2535.4971899018. The cubic root of 6428746 is about 185.9411113533.

The spelling of 6428746 in words is "six million, four hundred twenty-eight thousand, seven hundred forty-six".