80737216 has 56 divisors (see below), whose sum is σ = 193889376. Its totient is φ = 32563200.

The previous prime is 80737183. The next prime is 80737243. The reversal of 80737216 is 61273708.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (34).

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, 2316 + ... + 12916.

Almost surely, 2^80737216 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 80737216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96944688).

80737216 is an abundant number, since it is smaller than the sum of its proper divisors (113152160).

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

80737216 is a wasteful number, since it uses less digits than its factorization.

80737216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10637 (or 10627 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 80737216 is about 8985.3890288624. The cubic root of 80737216 is about 432.2064628107.

The spelling of 80737216 in words is "eighty million, seven hundred thirty-seven thousand, two hundred sixteen".