7275631 has 4 divisors (see below), whose sum is σ = 7937064. Its totient is φ = 6614200.

The previous prime is 7275629. The next prime is 7275637. The reversal of 7275631 is 1365727.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7275631 - 2¹ = 7275629 is a prime.

It is a super-2 number, since 2×7275631² = 105869612896322, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7275593 and 7275602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7275637) 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, 330700 + ... + 330721.

It is an arithmetic number, because the mean of its divisors is an integer number (1984266).

Almost surely, 2^7275631 is an apocalyptic number.

7275631 is a deficient number, since it is larger than the sum of its proper divisors (661433).

7275631 is a wasteful number, since it uses less digits than its factorization.

7275631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661432.

The product of its digits is 8820, while the sum is 31.

The square root of 7275631 is about 2697.3377615716. The cubic root of 7275631 is about 193.7716429517.

The spelling of 7275631 in words is "seven million, two hundred seventy-five thousand, six hundred thirty-one".