80247764 has 6 divisors (see below), whose sum is σ = 140433594. Its totient is φ = 40123880.

The previous prime is 80247751. The next prime is 80247767. The reversal of 80247764 is 46774208.

It can be written as a sum of positive squares in only one way, i.e., 70896400 + 9351364 = 8420^2 + 3058^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80247767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10030967 + ... + 10030974.

It is an arithmetic number, because the mean of its divisors is an integer number (23405599).

Almost surely, 2^80247764 is an apocalyptic number.

It is an amenable number.

80247764 is a deficient number, since it is larger than the sum of its proper divisors (60185830).

80247764 is a wasteful number, since it uses less digits than its factorization.

80247764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20061945 (or 20061943 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 38.

The square root of 80247764 is about 8958.1116313652. Note that the first 3 decimals coincide. The cubic root of 80247764 is about 431.3313057091.

The spelling of 80247764 in words is "eighty million, two hundred forty-seven thousand, seven hundred sixty-four".