7604021 has 4 divisors (see below), whose sum is σ = 7849344. Its totient is φ = 7358700.

The previous prime is 7604017. The next prime is 7604027. The reversal of 7604021 is 1204067.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1204067 = 647 ⋅1861.

It is a cyclic number.

It is not a de Polignac number, because 7604021 - 2² = 7604017 is a prime.

It is a super-2 number, since 2×7604021² = 115642270736882, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7603984 and 7604002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7604027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122615 + ... + 122676.

It is an arithmetic number, because the mean of its divisors is an integer number (1962336).

Almost surely, 2^7604021 is an apocalyptic number.

It is an amenable number.

7604021 is a deficient number, since it is larger than the sum of its proper divisors (245323).

7604021 is a wasteful number, since it uses less digits than its factorization.

7604021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245322.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 7604021 is about 2757.5389389816. The cubic root of 7604021 is about 196.6441823700.

Adding to 7604021 its reverse (1204067), we get a palindrome (8808088).

The spelling of 7604021 in words is "seven million, six hundred four thousand, twenty-one".