434063721 has 64 divisors (see below), whose sum is σ = 761600000. Its totient is φ = 213497856.

The previous prime is 434063713. The next prime is 434063741. The reversal of 434063721 is 127360434.

It is not a de Polignac number, because 434063721 - 2³ = 434063713 is a prime.

It is a super-2 number, since 2×434063721² = 376822627776731682, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (434063711) 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 63 ways as a sum of consecutive naturals, for example, 346905 + ... + 348153.

It is an arithmetic number, because the mean of its divisors is an integer number (11900000).

Almost surely, 2^434063721 is an apocalyptic number.

It is an amenable number.

434063721 is a deficient number, since it is larger than the sum of its proper divisors (327536279).

434063721 is a wasteful number, since it uses less digits than its factorization.

434063721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358.

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 434063721 is about 20834.1959528080. The cubic root of 434063721 is about 757.1544799840.

The spelling of 434063721 in words is "four hundred thirty-four million, sixty-three thousand, seven hundred twenty-one".