80439495 has 16 divisors (see below), whose sum is σ = 136274400. Its totient is φ = 40377344.

The previous prime is 80439449. The next prime is 80439523. The reversal of 80439495 is 59493408.

It is a cyclic number.

It is not a de Polignac number, because 80439495 - 2⁶ = 80439431 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

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, 157470 + ... + 157979.

It is an arithmetic number, because the mean of its divisors is an integer number (8517150).

Almost surely, 2^80439495 is an apocalyptic number.

80439495 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

80439495 is a deficient number, since it is larger than the sum of its proper divisors (55834905).

80439495 is a wasteful number, since it uses less digits than its factorization.

80439495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315474.

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

The square root of 80439495 is about 8968.8067768238. The cubic root of 80439495 is about 431.6745501923.

The spelling of 80439495 in words is "eighty million, four hundred thirty-nine thousand, four hundred ninety-five".