437420085 has 16 divisors (see below), whose sum is σ = 700539840. Its totient is φ = 233068160.

The previous prime is 437420083. The next prime is 437420099. The reversal of 437420085 is 580024734.

It is not a de Polignac number, because 437420085 - 2¹ = 437420083 is a prime.

It is a super-2 number, since 2×437420085² = 382672661522814450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (437420083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3001 + ... + 29729.

It is an arithmetic number, because the mean of its divisors is an integer number (43783740).

Almost surely, 2^437420085 is an apocalyptic number.

It is an amenable number.

437420085 is a deficient number, since it is larger than the sum of its proper divisors (263119755).

437420085 is a wasteful number, since it uses less digits than its factorization.

437420085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27828.

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 437420085 is about 20914.5902422209. The cubic root of 437420085 is about 759.1010174861.

The spelling of 437420085 in words is "four hundred thirty-seven million, four hundred twenty thousand, eighty-five".