80386949 has 4 divisors (see below), whose sum is σ = 80427660. Its totient is φ = 80346240.

The previous prime is 80386939. The next prime is 80386963. The reversal of 80386949 is 94968308.

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 13032100 + 67354849 = 3610^2 + 8207^2 .

It is a cyclic number.

It is not a de Polignac number, because 80386949 - 2¹² = 80382853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80386919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17234 + ... + 21395.

It is an arithmetic number, because the mean of its divisors is an integer number (20106915).

Almost surely, 2^80386949 is an apocalyptic number.

It is an amenable number.

80386949 is a deficient number, since it is larger than the sum of its proper divisors (40711).

80386949 is a wasteful number, since it uses less digits than its factorization.

80386949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40710.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 80386949 is about 8965.8769230901. The cubic root of 80386949 is about 431.5805345525.

The spelling of 80386949 in words is "eighty million, three hundred eighty-six thousand, nine hundred forty-nine".