434978 has 4 divisors (see below), whose sum is σ = 652470. Its totient is φ = 217488.

The previous prime is 434977. The next prime is 434981. The reversal of 434978 is 879434.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 380689 + 54289 = 617^2 + 233^2 .

It is not an unprimeable number, because it can be changed into a prime (434977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108743 + ... + 108746.

2⁴³⁴⁹⁷⁸ is an apocalyptic number.

434978 is a deficient number, since it is larger than the sum of its proper divisors (217492).

434978 is a wasteful number, since it uses less digits than its factorization.

434978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217491.

The product of its digits is 24192, while the sum is 35.

The square root of 434978 is about 659.5286195458. The cubic root of 434978 is about 75.7685711491.

The spelling of 434978 in words is "four hundred thirty-four thousand, nine hundred seventy-eight".