80769737 has 4 divisors (see below), whose sum is σ = 85520916. Its totient is φ = 76018560.

The previous prime is 80769719. The next prime is 80769739. The reversal of 80769737 is 73796708.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 52722121 + 28047616 = 7261^2 + 5296^2 .

It is not a de Polignac number, because 80769737 - 2¹⁰ = 80768713 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80769691 and 80769700.

It is not an unprimeable number, because it can be changed into a prime (80769739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2375564 + ... + 2375597.

It is an arithmetic number, because the mean of its divisors is an integer number (21380229).

Almost surely, 2^80769737 is an apocalyptic number.

It is an amenable number.

80769737 is a deficient number, since it is larger than the sum of its proper divisors (4751179).

80769737 is a wasteful number, since it uses less digits than its factorization.

80769737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4751178.

The product of its (nonzero) digits is 444528, while the sum is 47.

The square root of 80769737 is about 8987.1985067651. The cubic root of 80769737 is about 432.2644860300.

The spelling of 80769737 in words is "eighty million, seven hundred sixty-nine thousand, seven hundred thirty-seven".