80961449 has 8 divisors (see below), whose sum is σ = 85231872. Its totient is φ = 76753600.

The previous prime is 80961427. The next prime is 80961479. The reversal of 80961449 is 94416908.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80961449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80961409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12977 + ... + 18174.

It is an arithmetic number, because the mean of its divisors is an integer number (10653984).

Almost surely, 2^80961449 is an apocalyptic number.

It is an amenable number.

80961449 is a deficient number, since it is larger than the sum of its proper divisors (4270423).

80961449 is a wasteful number, since it uses less digits than its factorization.

80961449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31287.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 80961449 is about 8997.8580228852. The cubic root of 80961449 is about 432.6062180228.

The spelling of 80961449 in words is "eighty million, nine hundred sixty-one thousand, four hundred forty-nine".