407867489 has 4 divisors (see below), whose sum is σ = 415563156. Its totient is φ = 400171824.

The previous prime is 407867477. The next prime is 407867491. The reversal of 407867489 is 984768704.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 370755025 + 37112464 = 19255^2 + 6092^2 .

It is a cyclic number.

It is not a de Polignac number, because 407867489 - 2²⁰ = 406818913 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53), and also a Moran number because the ratio is a prime number: 7695613 = 407867489 / (4 + 0 + 7 + 8 + 6 + 7 + 4 + 8 + 9).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 407867489.

It is not an unprimeable number, because it can be changed into a prime (407867419) 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, 3847754 + ... + 3847859.

It is an arithmetic number, because the mean of its divisors is an integer number (103890789).

Almost surely, 2^407867489 is an apocalyptic number.

It is an amenable number.

407867489 is a deficient number, since it is larger than the sum of its proper divisors (7695667).

407867489 is an equidigital number, since it uses as much as digits as its factorization.

407867489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7695666.

The product of its (nonzero) digits is 2709504, while the sum is 53.

The square root of 407867489 is about 20195.7294743220. The cubic root of 407867489 is about 741.6056497770.

The spelling of 407867489 in words is "four hundred seven million, eight hundred sixty-seven thousand, four hundred eighty-nine".