80011782 has 12 divisors (see below), whose sum is σ = 173358900. Its totient is φ = 26670588.

The previous prime is 80011769. The next prime is 80011807. The reversal of 80011782 is 28711008.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2222532 + ... + 2222567.

It is an arithmetic number, because the mean of its divisors is an integer number (14446575).

Almost surely, 2^80011782 is an apocalyptic number.

80011782 is an abundant number, since it is smaller than the sum of its proper divisors (93347118).

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

80011782 is a wasteful number, since it uses less digits than its factorization.

80011782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4445107 (or 4445104 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 80011782 is about 8944.9305195736. The cubic root of 80011782 is about 430.9080899260.

The spelling of 80011782 in words is "eighty million, eleven thousand, seven hundred eighty-two".