80769613 has 4 divisors (see below), whose sum is σ = 81553888. Its totient is φ = 79985340.

The previous prime is 80769607. The next prime is 80769649. The reversal of 80769613 is 31696708.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80769613 - 2⁵ = 80769581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80769313) 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, 391983 + ... + 392188.

It is an arithmetic number, because the mean of its divisors is an integer number (20388472).

Almost surely, 2^80769613 is an apocalyptic number.

It is an amenable number.

80769613 is a deficient number, since it is larger than the sum of its proper divisors (784275).

80769613 is a wasteful number, since it uses less digits than its factorization.

80769613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784274.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 80769613 is about 8987.1916080609. The cubic root of 80769613 is about 432.2642648216.

It can be divided in two parts, 8076961 and 3, that added together give a square (8076964 = 2842²).

The spelling of 80769613 in words is "eighty million, seven hundred sixty-nine thousand, six hundred thirteen".