80890635 has 16 divisors (see below), whose sum is σ = 147914496. Its totient is φ = 36978528.

The previous prime is 80890631. The next prime is 80890651. The reversal of 80890635 is 53609808.

It is not a de Polignac number, because 80890635 - 2² = 80890631 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80890593 and 80890602.

It is not an unprimeable number, because it can be changed into a prime (80890631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 385089 + ... + 385298.

It is an arithmetic number, because the mean of its divisors is an integer number (9244656).

Almost surely, 2^80890635 is an apocalyptic number.

80890635 is a deficient number, since it is larger than the sum of its proper divisors (67023861).

80890635 is a wasteful number, since it uses less digits than its factorization.

80890635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770402.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 80890635 is about 8993.9221144059. The cubic root of 80890635 is about 432.4800529854.

The spelling of 80890635 in words is "eighty million, eight hundred ninety thousand, six hundred thirty-five".