7628461 has 4 divisors (see below), whose sum is σ = 8077212. Its totient is φ = 7179712.

The previous prime is 7628441. The next prime is 7628471. The reversal of 7628461 is 1648267.

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 6791236 + 837225 = 2606^2 + 915^2 .

It is not a de Polignac number, because 7628461 - 2⁷ = 7628333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7628441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224350 + ... + 224383.

It is an arithmetic number, because the mean of its divisors is an integer number (2019303).

Almost surely, 2^7628461 is an apocalyptic number.

It is an amenable number.

7628461 is a deficient number, since it is larger than the sum of its proper divisors (448751).

7628461 is a wasteful number, since it uses less digits than its factorization.

7628461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448750.

The product of its digits is 16128, while the sum is 34.

The square root of 7628461 is about 2761.9668716333. The cubic root of 7628461 is about 196.8546343593.

The spelling of 7628461 in words is "seven million, six hundred twenty-eight thousand, four hundred sixty-one".