7860449 has 4 divisors (see below), whose sum is σ = 7889940. Its totient is φ = 7830960.

The previous prime is 7860439. The next prime is 7860451. The reversal of 7860449 is 9440687.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9440687 = 1553 ⋅6079.

It can be written as a sum of positive squares in 2 ways, for example, as 336400 + 7524049 = 580^2 + 2743^2 .

It is a cyclic number.

It is not a de Polignac number, because 7860449 - 2²⁰ = 6811873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7860439) 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, 14342 + ... + 14879.

It is an arithmetic number, because the mean of its divisors is an integer number (1972485).

Almost surely, 2^7860449 is an apocalyptic number.

It is an amenable number.

7860449 is a deficient number, since it is larger than the sum of its proper divisors (29491).

7860449 is a wasteful number, since it uses less digits than its factorization.

7860449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29490.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 7860449 is about 2803.6492291298. The cubic root of 7860449 is about 198.8302467247.

The spelling of 7860449 in words is "seven million, eight hundred sixty thousand, four hundred forty-nine".