806279949 has 6 divisors (see below), whose sum is σ = 1164626606. Its totient is φ = 537519960.

The previous prime is 806279941. The next prime is 806279959. The reversal of 806279949 is 949972608.

806279949 is a `hidden beast` number, since 8 + 0 + 627 + 9 + 9 + 4 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 724955625 + 81324324 = 26925^2 + 9018^2 .

It is not a de Polignac number, because 806279949 - 2³ = 806279941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 806279895 and 806279904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806279941) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44793322 + ... + 44793339.

Almost surely, 2^806279949 is an apocalyptic number.

It is an amenable number.

806279949 is a deficient number, since it is larger than the sum of its proper divisors (358346657).

806279949 is a wasteful number, since it uses less digits than its factorization.

806279949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89586667 (or 89586664 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The square root of 806279949 is about 28395.0690965879. The cubic root of 806279949 is about 930.7405166900.

The spelling of 806279949 in words is "eight hundred six million, two hundred seventy-nine thousand, nine hundred forty-nine".