80825436 has 36 divisors (see below), whose sum is σ = 211356600. Its totient is φ = 26012448.

The previous prime is 80825431. The next prime is 80825443. The reversal of 80825436 is 63452808.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×80825436² = 13065502209180192, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 80825436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80825431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37666 + ... + 39753.

Almost surely, 2^80825436 is an apocalyptic number.

It is an amenable number.

80825436 is an abundant number, since it is smaller than the sum of its proper divisors (130531164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80825436 is a wasteful number, since it uses less digits than its factorization.

80825436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77458 (or 77453 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 80825436 is about 8990.2967692952. The cubic root of 80825436 is about 432.3638267326.

It can be divided in two parts, 808 and 25436, that added together give a square (26244 = 162²).

The spelling of 80825436 in words is "eighty million, eight hundred twenty-five thousand, four hundred thirty-six".