434769987 has 8 divisors (see below), whose sum is σ = 579794704. Its totient is φ = 289795968.

The previous prime is 434769983. The next prime is 434770013. The reversal of 434769987 is 789967434.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 434769987 - 2² = 434769983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (434769983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17823 + ... + 34455.

It is an arithmetic number, because the mean of its divisors is an integer number (72474338).

Almost surely, 2^434769987 is an apocalyptic number.

434769987 is a deficient number, since it is larger than the sum of its proper divisors (145024717).

434769987 is a wasteful number, since it uses less digits than its factorization.

434769987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25349.

The product of its digits is 9144576, while the sum is 57.

The square root of 434769987 is about 20851.1387458815. The cubic root of 434769987 is about 757.5649133449.

The spelling of 434769987 in words is "four hundred thirty-four million, seven hundred sixty-nine thousand, nine hundred eighty-seven".