80505735 has 16 divisors (see below), whose sum is σ = 129188736. Its totient is φ = 42809888.

The previous prime is 80505697. The next prime is 80505749. The reversal of 80505735 is 53750508.

It is a cyclic number.

It is not a de Polignac number, because 80505735 - 2⁶ = 80505671 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80505696 and 80505705.

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, 2529 + ... + 12938.

It is an arithmetic number, because the mean of its divisors is an integer number (8074296).

Almost surely, 2^80505735 is an apocalyptic number.

80505735 is a deficient number, since it is larger than the sum of its proper divisors (48683001).

80505735 is a wasteful number, since it uses less digits than its factorization.

80505735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15822.

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 80505735 is about 8972.4988158261. The cubic root of 80505735 is about 431.7930089044.

The spelling of 80505735 in words is "eighty million, five hundred five thousand, seven hundred thirty-five".