80984661 has 8 divisors (see below), whose sum is σ = 108119904. Its totient is φ = 53919600.

The previous prime is 80984653. The next prime is 80984737. The reversal of 80984661 is 16648908.

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

It is not a de Polignac number, because 80984661 - 2³ = 80984653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80984611) 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, 14790 + ... + 19511.

It is an arithmetic number, because the mean of its divisors is an integer number (13514988).

Almost surely, 2^80984661 is an apocalyptic number.

It is an amenable number.

80984661 is a deficient number, since it is larger than the sum of its proper divisors (27135243).

80984661 is a wasteful number, since it uses less digits than its factorization.

80984661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35091.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 80984661 is about 8999.1477929857. The cubic root of 80984661 is about 432.6475574345.

The spelling of 80984661 in words is "eighty million, nine hundred eighty-four thousand, six hundred sixty-one".