80603961 has 4 divisors (see below), whose sum is σ = 107471952. Its totient is φ = 53735972.

The previous prime is 80603927. The next prime is 80604049. The reversal of 80603961 is 16930608.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80603961 - 2¹⁰ = 80602937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80603911) 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, 13433991 + ... + 13433996.

It is an arithmetic number, because the mean of its divisors is an integer number (26867988).

Almost surely, 2^80603961 is an apocalyptic number.

It is an amenable number.

80603961 is a deficient number, since it is larger than the sum of its proper divisors (26867991).

80603961 is a wasteful number, since it uses less digits than its factorization.

80603961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26867990.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 80603961 is about 8977.9708731985. The cubic root of 80603961 is about 431.9685494508.

It can be divided in two parts, 8060 and 3961, that added together give a palindrome (12021).

The spelling of 80603961 in words is "eighty million, six hundred three thousand, nine hundred sixty-one".