80597389 has 4 divisors (see below), whose sum is σ = 80932060. Its totient is φ = 80262720.

The previous prime is 80597383. The next prime is 80597423. The reversal of 80597389 is 98379508.

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 23474025 + 57123364 = 4845^2 + 7558^2 .

It is a cyclic number.

It is not a de Polignac number, because 80597389 - 2³ = 80597381 is a prime.

It is a super-2 number, since 2×80597389² = 12991878227234642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80597381) 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, 166974 + ... + 167455.

It is an arithmetic number, because the mean of its divisors is an integer number (20233015).

Almost surely, 2^80597389 is an apocalyptic number.

It is an amenable number.

80597389 is a deficient number, since it is larger than the sum of its proper divisors (334671).

80597389 is a wasteful number, since it uses less digits than its factorization.

80597389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334670.

The product of its (nonzero) digits is 544320, while the sum is 49.

The square root of 80597389 is about 8977.6048587583. The cubic root of 80597389 is about 431.9568090250.

The spelling of 80597389 in words is "eighty million, five hundred ninety-seven thousand, three hundred eighty-nine".