564989467 has 4 divisors (see below), whose sum is σ = 645702256. Its totient is φ = 484276680.

The previous prime is 564989461. The next prime is 564989473. The reversal of 564989467 is 764989465.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 764989465 = 5 ⋅152997893.

It is an interprime number because it is at equal distance from previous prime (564989461) and next prime (564989473).

It is a cyclic number.

It is not a de Polignac number, because 564989467 - 2²⁷ = 430771739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (564989461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40356384 + ... + 40356397.

It is an arithmetic number, because the mean of its divisors is an integer number (161425564).

Almost surely, 2^564989467 is an apocalyptic number.

564989467 is a deficient number, since it is larger than the sum of its proper divisors (80712789).

564989467 is an equidigital number, since it uses as much as digits as its factorization.

564989467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80712788.

The product of its digits is 13063680, while the sum is 58.

The square root of 564989467 is about 23769.5070836566. The cubic root of 564989467 is about 826.6978036493.

The spelling of 564989467 in words is "five hundred sixty-four million, nine hundred eighty-nine thousand, four hundred sixty-seven".