437420689 has 8 divisors (see below), whose sum is σ = 446441760. Its totient is φ = 428473056.

The previous prime is 437420663. The next prime is 437420699. The reversal of 437420689 is 986024734.

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

It is a cyclic number.

It is not a de Polignac number, because 437420689 - 2⁵ = 437420657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (437420699) 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, 6244 + ... + 30229.

It is an arithmetic number, because the mean of its divisors is an integer number (55805220).

Almost surely, 2^437420689 is an apocalyptic number.

It is an amenable number.

437420689 is a deficient number, since it is larger than the sum of its proper divisors (9021071).

437420689 is a wasteful number, since it uses less digits than its factorization.

437420689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36719.

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 437420689 is about 20914.6046818963. The cubic root of 437420689 is about 759.1013668808.

The spelling of 437420689 in words is "four hundred thirty-seven million, four hundred twenty thousand, six hundred eighty-nine".