80452779 has 24 divisors (see below), whose sum is σ = 118512576. Its totient is φ = 48510000.

The previous prime is 80452777. The next prime is 80452807. The reversal of 80452779 is 97725408.

It is not a de Polignac number, because 80452779 - 2¹ = 80452777 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80452779.

It is not an unprimeable number, because it can be changed into a prime (80452777) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90672 + ... + 91554.

It is an arithmetic number, because the mean of its divisors is an integer number (4938024).

Almost surely, 2^80452779 is an apocalyptic number.

80452779 is a deficient number, since it is larger than the sum of its proper divisors (38059797).

80452779 is a wasteful number, since it uses less digits than its factorization.

80452779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159 (or 1148 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 80452779 is about 8969.5473129919. The cubic root of 80452779 is about 431.6983115262.

The spelling of 80452779 in words is "eighty million, four hundred fifty-two thousand, seven hundred seventy-nine".