80394961 has 4 divisors (see below), whose sum is σ = 80467300. Its totient is φ = 80322624.

The previous prime is 80394953. The next prime is 80394971. The reversal of 80394961 is 16949308.

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 2954961 + 77440000 = 1719^2 + 8800^2 .

It is a cyclic number.

It is not a de Polignac number, because 80394961 - 2³ = 80394953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80394901) 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, 34476 + ... + 36733.

It is an arithmetic number, because the mean of its divisors is an integer number (20116825).

Almost surely, 2^80394961 is an apocalyptic number.

It is an amenable number.

80394961 is a deficient number, since it is larger than the sum of its proper divisors (72339).

80394961 is a wasteful number, since it uses less digits than its factorization.

80394961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72338.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 80394961 is about 8966.3237171095. The cubic root of 80394961 is about 431.5948723209.

The spelling of 80394961 in words is "eighty million, three hundred ninety-four thousand, nine hundred sixty-one".