80493945 has 16 divisors (see below), whose sum is σ = 147189120. Its totient is φ = 36797184.

The previous prime is 80493923. The next prime is 80493983. The reversal of 80493945 is 54939408.

It is not a de Polignac number, because 80493945 - 2⁵ = 80493913 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 80493897 and 80493906.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 383200 + ... + 383409.

It is an arithmetic number, because the mean of its divisors is an integer number (9199320).

Almost surely, 2^80493945 is an apocalyptic number.

It is an amenable number.

80493945 is a deficient number, since it is larger than the sum of its proper divisors (66695175).

80493945 is a wasteful number, since it uses less digits than its factorization.

80493945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766624.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 80493945 is about 8971.8417841600. The cubic root of 80493945 is about 431.7719292960.

It can be divided in two parts, 804 and 93945, that added together give a palindrome (94749).

The spelling of 80493945 in words is "eighty million, four hundred ninety-three thousand, nine hundred forty-five".