80849436 has 24 divisors (see below), whose sum is σ = 191466240. Its totient is φ = 26547312.

The previous prime is 80849423. The next prime is 80849441. The reversal of 80849436 is 63494808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49476 + ... + 51083.

It is an arithmetic number, because the mean of its divisors is an integer number (7977760).

Almost surely, 2^80849436 is an apocalyptic number.

It is an amenable number.

80849436 is an abundant number, since it is smaller than the sum of its proper divisors (110616804).

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

80849436 is a wasteful number, since it uses less digits than its factorization.

80849436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100633 (or 100631 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 80849436 is about 8991.6314426249. The cubic root of 80849436 is about 432.4066173253.

The spelling of 80849436 in words is "eighty million, eight hundred forty-nine thousand, four hundred thirty-six".