80699424 has 48 divisors (see below), whose sum is σ = 228134592. Its totient is φ = 24830208.

The previous prime is 80699389. The next prime is 80699429. The reversal of 80699424 is 42499608.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (80699429) 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, 31084 + ... + 33579.

It is an arithmetic number, because the mean of its divisors is an integer number (4752804).

Almost surely, 2^80699424 is an apocalyptic number.

It is an amenable number.

80699424 is an abundant number, since it is smaller than the sum of its proper divisors (147435168).

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

80699424 is a wasteful number, since it uses less digits than its factorization.

80699424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64689 (or 64681 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 80699424 is about 8983.2858131087. The cubic root of 80699424 is about 432.1390156173.

The spelling of 80699424 in words is "eighty million, six hundred ninety-nine thousand, four hundred twenty-four".