80451696 has 80 divisors (see below), whose sum is σ = 231096320. Its totient is φ = 23950080.

The previous prime is 80451691. The next prime is 80451697. The reversal of 80451696 is 69615408.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80451691) 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, 17265 + ... + 21423.

It is an arithmetic number, because the mean of its divisors is an integer number (2888704).

Almost surely, 2^80451696 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 80451696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115548160).

80451696 is an abundant number, since it is smaller than the sum of its proper divisors (150644624).

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

80451696 is a wasteful number, since it uses less digits than its factorization.

80451696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4214 (or 4208 counting only the distinct ones).

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

The square root of 80451696 is about 8969.4869418490. The cubic root of 80451696 is about 431.6963744422.

The spelling of 80451696 in words is "eighty million, four hundred fifty-one thousand, six hundred ninety-six".