80619536 has 40 divisors (see below), whose sum is σ = 162411480. Its totient is φ = 38721536.

The previous prime is 80619533. The next prime is 80619541. The reversal of 80619536 is 63591608.

It can be written as a sum of positive squares in 4 ways, for example, as 36529936 + 44089600 = 6044^2 + 6640^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 80619536.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80619533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135656 + ... + 136248.

It is an arithmetic number, because the mean of its divisors is an integer number (4060287).

Almost surely, 2^80619536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80619536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81205740).

80619536 is an abundant number, since it is smaller than the sum of its proper divisors (81791944).

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

80619536 is a wasteful number, since it uses less digits than its factorization.

80619536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923 (or 917 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 80619536 is about 8978.8382321991. The cubic root of 80619536 is about 431.9963705685.

The spelling of 80619536 in words is "eighty million, six hundred nineteen thousand, five hundred thirty-six".