80658049 has 4 divisors (see below), whose sum is σ = 80676820. Its totient is φ = 80639280.

The previous prime is 80658031. The next prime is 80658091. The reversal of 80658049 is 94085608.

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 78854400 + 1803649 = 8880^2 + 1343^2 .

It is a cyclic number.

It is not a de Polignac number, because 80658049 - 2¹³ = 80649857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80658349) 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, 607 + ... + 12715.

It is an arithmetic number, because the mean of its divisors is an integer number (20169205).

Almost surely, 2^80658049 is an apocalyptic number.

It is an amenable number.

80658049 is a deficient number, since it is larger than the sum of its proper divisors (18771).

80658049 is a wasteful number, since it uses less digits than its factorization.

80658049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18770.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 80658049 is about 8980.9826299799. The cubic root of 80658049 is about 432.0651497108.

The spelling of 80658049 in words is "eighty million, six hundred fifty-eight thousand, forty-nine".