437494489 has 4 divisors (see below), whose sum is σ = 445749156. Its totient is φ = 429239824.

The previous prime is 437494483. The next prime is 437494517. The reversal of 437494489 is 984494734.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 984494734 = 2 ⋅492247367.

It can be written as a sum of positive squares in 2 ways, for example, as 402684489 + 34810000 = 20067^2 + 5900^2 .

It is a cyclic number.

It is not a de Polignac number, because 437494489 - 2¹⁷ = 437363417 is a prime.

It is a super-2 number, since 2×437494489² = 382802855810742242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (437494483) 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, 4127254 + ... + 4127359.

It is an arithmetic number, because the mean of its divisors is an integer number (111437289).

Almost surely, 2^437494489 is an apocalyptic number.

It is an amenable number.

437494489 is a deficient number, since it is larger than the sum of its proper divisors (8254667).

437494489 is an equidigital number, since it uses as much as digits as its factorization.

437494489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8254666.

The product of its digits is 3483648, while the sum is 52.

The square root of 437494489 is about 20916.3689248397. The cubic root of 437494489 is about 759.1440554047.

The spelling of 437494489 in words is "four hundred thirty-seven million, four hundred ninety-four thousand, four hundred eighty-nine".