561971467 has 6 divisors (see below), whose sum is σ = 571338924. Its totient is φ = 552755160.

The previous prime is 561971437. The next prime is 561971479. The reversal of 561971467 is 764179165.

It is a de Polignac number, because none of the positive numbers 2^k-561971467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561971437) 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 5 ways as a sum of consecutive naturals, for example, 71793 + ... + 79234.

It is an arithmetic number, because the mean of its divisors is an integer number (95223154).

Almost surely, 2^561971467 is an apocalyptic number.

561971467 is a deficient number, since it is larger than the sum of its proper divisors (9367457).

561971467 is an equidigital number, since it uses as much as digits as its factorization.

561971467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151149 (or 151088 counting only the distinct ones).

The product of its digits is 317520, while the sum is 46.

The square root of 561971467 is about 23705.9373786400. The cubic root of 561971467 is about 825.2231863869.

The spelling of 561971467 in words is "five hundred sixty-one million, nine hundred seventy-one thousand, four hundred sixty-seven".