7620231 has 8 divisors (see below), whose sum is σ = 10177920. Its totient is φ = 5071352.

The previous prime is 7620227. The next prime is 7620241. The reversal of 7620231 is 1320267.

It is a happy number.

7620231 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7620231 - 2² = 7620227 is a prime.

It is a super-2 number, since 2×7620231² = 116135840986722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7620198 and 7620207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7620241) 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 7 ways as a sum of consecutive naturals, for example, 190 + ... + 3908.

It is an arithmetic number, because the mean of its divisors is an integer number (1272240).

Almost surely, 2^7620231 is an apocalyptic number.

7620231 is a deficient number, since it is larger than the sum of its proper divisors (2557689).

7620231 is a wasteful number, since it uses less digits than its factorization.

7620231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4405.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 7620231 is about 2760.4765892867. The cubic root of 7620231 is about 196.7838163786.

Adding to 7620231 its reverse (1320267), we get a palindrome (8940498).

The spelling of 7620231 in words is "seven million, six hundred twenty thousand, two hundred thirty-one".