607631021 has 2 divisors, whose sum is σ = 607631022. Its totient is φ = 607631020.

The previous prime is 607631009. The next prime is 607631033. The reversal of 607631021 is 120136706.

It is a balanced prime because it is at equal distance from previous prime (607631009) and next prime (607631033).

It can be written as a sum of positive squares in only one way, i.e., 493461796 + 114169225 = 22214^2 + 10685^2 .

It is a cyclic number.

It is not a de Polignac number, because 607631021 - 2⁶ = 607630957 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (607631621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303815510 + 303815511.

It is an arithmetic number, because the mean of its divisors is an integer number (303815511).

Almost surely, 2^607631021 is an apocalyptic number.

It is an amenable number.

607631021 is a deficient number, since it is larger than the sum of its proper divisors (1).

607631021 is an equidigital number, since it uses as much as digits as its factorization.

607631021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 607631021 is about 24650.1728391506. The cubic root of 607631021 is about 846.9933082738.

Adding to 607631021 its reverse (120136706), we get a palindrome (727767727).

The spelling of 607631021 in words is "six hundred seven million, six hundred thirty-one thousand, twenty-one".