80736819 has 8 divisors (see below), whose sum is σ = 107886480. Its totient is φ = 53705856.

The previous prime is 80736811. The next prime is 80736823. The reversal of 80736819 is 91863708.

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

It is not a de Polignac number, because 80736819 - 2³ = 80736811 is a prime.

It is a super-2 number, since 2×80736819² = 13036867884477522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80736811) 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, 28074 + ... + 30815.

It is an arithmetic number, because the mean of its divisors is an integer number (13485810).

Almost surely, 2^80736819 is an apocalyptic number.

80736819 is a deficient number, since it is larger than the sum of its proper divisors (27149661).

80736819 is a wasteful number, since it uses less digits than its factorization.

80736819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59349.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 80736819 is about 8985.3669374155. The cubic root of 80736819 is about 432.2057543962.

The spelling of 80736819 in words is "eighty million, seven hundred thirty-six thousand, eight hundred nineteen".