80942963 has 4 divisors (see below), whose sum is σ = 80970408. Its totient is φ = 80915520.

The previous prime is 80942959. The next prime is 80942971. The reversal of 80942963 is 36924908.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80942963 - 2² = 80942959 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80942963.

It is not an unprimeable number, because it can be changed into a prime (80942923) 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, 8681 + ... + 15402.

It is an arithmetic number, because the mean of its divisors is an integer number (20242602).

Almost surely, 2^80942963 is an apocalyptic number.

80942963 is a deficient number, since it is larger than the sum of its proper divisors (27445).

80942963 is a wasteful number, since it uses less digits than its factorization.

80942963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27444.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 80942963 is about 8996.8307197590. The cubic root of 80942963 is about 432.5732897283.

The spelling of 80942963 in words is "eighty million, nine hundred forty-two thousand, nine hundred sixty-three".