7521896 has 16 divisors (see below), whose sum is σ = 14156100. Its totient is φ = 3746944.

The previous prime is 7521893. The next prime is 7521911. The reversal of 7521896 is 6981257.

It can be written as a sum of positive squares in 2 ways, for example, as 6832996 + 688900 = 2614^2 + 830^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7521893) 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, 740 + ... + 3948.

Almost surely, 2^7521896 is an apocalyptic number.

It is an amenable number.

7521896 is a deficient number, since it is larger than the sum of its proper divisors (6634204).

7521896 is a wasteful number, since it uses less digits than its factorization.

7521896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3508 (or 3504 counting only the distinct ones).

The product of its digits is 30240, while the sum is 38.

The square root of 7521896 is about 2742.6075184029. The cubic root of 7521896 is about 195.9336857430.

The spelling of 7521896 in words is "seven million, five hundred twenty-one thousand, eight hundred ninety-six".