694280489 has 4 divisors (see below), whose sum is σ = 793463424. Its totient is φ = 595097556.

The previous prime is 694280479. The next prime is 694280563. The reversal of 694280489 is 984082496.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 694280489 - 2⁸ = 694280233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (694280449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49591457 + ... + 49591470.

It is an arithmetic number, because the mean of its divisors is an integer number (198365856).

Almost surely, 2^694280489 is an apocalyptic number.

It is an amenable number.

694280489 is a deficient number, since it is larger than the sum of its proper divisors (99182935).

694280489 is an equidigital number, since it uses as much as digits as its factorization.

694280489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99182934.

The product of its (nonzero) digits is 995328, while the sum is 50.

The square root of 694280489 is about 26349.2028152656. The cubic root of 694280489 is about 885.4791107036.

The spelling of 694280489 in words is "six hundred ninety-four million, two hundred eighty thousand, four hundred eighty-nine".