434664691 has 6 divisors (see below), whose sum is σ = 457637460. Its totient is φ = 411701508.

The previous prime is 434664667. The next prime is 434664701. The reversal of 434664691 is 196466434.

It is not a de Polignac number, because 434664691 - 2⁷ = 434664563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (434664091) 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 5 ways as a sum of consecutive naturals, for example, 88486 + ... + 93268.

It is an arithmetic number, because the mean of its divisors is an integer number (76272910).

Almost surely, 2^434664691 is an apocalyptic number.

434664691 is a deficient number, since it is larger than the sum of its proper divisors (22972769).

434664691 is an frugal number, since it uses more digits than its factorization.

434664691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9585 (or 4802 counting only the distinct ones).

The product of its digits is 373248, while the sum is 43.

The square root of 434664691 is about 20848.6136469550. The cubic root of 434664691 is about 757.5037507393.

The spelling of 434664691 in words is "four hundred thirty-four million, six hundred sixty-four thousand, six hundred ninety-one".