80394775 has 18 divisors (see below), whose sum is σ = 104229440. Its totient is φ = 61509360.

The previous prime is 80394773. The next prime is 80394781. The reversal of 80394775 is 57749308.

It is a happy number.

It is not a de Polignac number, because 80394775 - 2¹ = 80394773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80394773) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 10186 + ... + 16264.

Almost surely, 2^80394775 is an apocalyptic number.

80394775 is a deficient number, since it is larger than the sum of its proper divisors (23834665).

80394775 is a wasteful number, since it uses less digits than its factorization.

80394775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6135 (or 6107 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 80394775 is about 8966.3133449596. The cubic root of 80394775 is about 431.5945394779.

The spelling of 80394775 in words is "eighty million, three hundred ninety-four thousand, seven hundred seventy-five".