286842949 has 4 divisors (see below), whose sum is σ = 289627936. Its totient is φ = 284057964.

The previous prime is 286842947. The next prime is 286842961. The reversal of 286842949 is 949248682.

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, and also an emirpimes, since its reverse is a distinct semiprime: 949248682 = 2 ⋅474624341.

It is a cyclic number.

It is not a de Polignac number, because 286842949 - 2¹ = 286842947 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 286842896 and 286842905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (286842947) 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, 1392339 + ... + 1392544.

It is an arithmetic number, because the mean of its divisors is an integer number (72406984).

Almost surely, 2^286842949 is an apocalyptic number.

It is an amenable number.

286842949 is a deficient number, since it is larger than the sum of its proper divisors (2784987).

286842949 is a wasteful number, since it uses less digits than its factorization.

286842949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2784986.

The product of its digits is 1990656, while the sum is 52.

The square root of 286842949 is about 16936.4384981023. The cubic root of 286842949 is about 659.4998882030.

The spelling of 286842949 in words is "two hundred eighty-six million, eight hundred forty-two thousand, nine hundred forty-nine".