7486621 has 4 divisors (see below), whose sum is σ = 7627932. Its totient is φ = 7345312.

The previous prime is 7486607. The next prime is 7486631. The reversal of 7486621 is 1266847.

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 2842596 + 4644025 = 1686^2 + 2155^2 .

It is a cyclic number.

It is not a de Polignac number, because 7486621 - 2¹⁷ = 7355549 is a prime.

It is a Duffinian number.

7486621 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7486631) 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, 70576 + ... + 70681.

It is an arithmetic number, because the mean of its divisors is an integer number (1906983).

Almost surely, 2^7486621 is an apocalyptic number.

It is an amenable number.

7486621 is a deficient number, since it is larger than the sum of its proper divisors (141311).

7486621 is a wasteful number, since it uses less digits than its factorization.

7486621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141310.

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

The square root of 7486621 is about 2736.1690371759. The cubic root of 7486621 is about 195.6269194149.

The spelling of 7486621 in words is "seven million, four hundred eighty-six thousand, six hundred twenty-one".