7623641 has 4 divisors (see below), whose sum is σ = 7659984. Its totient is φ = 7587300.

The previous prime is 7623619. The next prime is 7623647. The reversal of 7623641 is 1463267.

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: 1463267 = 13 ⋅112559.

It is a cyclic number.

It is not a de Polignac number, because 7623641 - 2¹⁰ = 7622617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7623647) 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, 17855 + ... + 18276.

It is an arithmetic number, because the mean of its divisors is an integer number (1914996).

Almost surely, 2^7623641 is an apocalyptic number.

It is an amenable number.

7623641 is a deficient number, since it is larger than the sum of its proper divisors (36343).

7623641 is a wasteful number, since it uses less digits than its factorization.

7623641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36342.

The product of its digits is 6048, while the sum is 29.

The square root of 7623641 is about 2761.0941671736. The cubic root of 7623641 is about 196.8131651277.

The spelling of 7623641 in words is "seven million, six hundred twenty-three thousand, six hundred forty-one".