7535921 has 2 divisors, whose sum is σ = 7535922. Its totient is φ = 7535920.

The previous prime is 7535917. The next prime is 7535953. The reversal of 7535921 is 1295357.

It is an a-pointer prime, because the next prime (7535953) can be obtained adding 7535921 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7480225 + 55696 = 2735^2 + 236^2 .

It is a cyclic number.

It is not a de Polignac number, because 7535921 - 2² = 7535917 is a prime.

It is not a weakly prime, because it can be changed into another prime (7535971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3767960 + 3767961.

It is an arithmetic number, because the mean of its divisors is an integer number (3767961).

Almost surely, 2^7535921 is an apocalyptic number.

It is an amenable number.

7535921 is a deficient number, since it is larger than the sum of its proper divisors (1).

7535921 is an equidigital number, since it uses as much as digits as its factorization.

7535921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9450, while the sum is 32.

The square root of 7535921 is about 2745.1632009773. The cubic root of 7535921 is about 196.0553866101.

The spelling of 7535921 in words is "seven million, five hundred thirty-five thousand, nine hundred twenty-one".