1031604427 has 16 divisors (see below), whose sum is σ = 1211035392. Its totient is φ = 860508000.

The previous prime is 1031604419. The next prime is 1031604461. The reversal of 1031604427 is 7244061301.

It is a cyclic number.

It is not a de Polignac number, because 1031604427 - 2³ = 1031604419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1031604395 and 1031604404.

It is not an unprimeable number, because it can be changed into a prime (1031604407) 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 in 15 ways as a sum of consecutive naturals, for example, 25677 + ... + 52177.

It is an arithmetic number, because the mean of its divisors is an integer number (75689712).

Almost surely, 2^1031604427 is an apocalyptic number.

1031604427 is a deficient number, since it is larger than the sum of its proper divisors (179430965).

1031604427 is an equidigital number, since it uses as much as digits as its factorization.

1031604427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26658.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 1031604427 is about 32118.5993934978. The cubic root of 1031604427 is about 1010.4257352984.

Adding to 1031604427 its reverse (7244061301), we get a palindrome (8275665728).

The spelling of 1031604427 in words is "one billion, thirty-one million, six hundred four thousand, four hundred twenty-seven".