80345431 has 4 divisors (see below), whose sum is σ = 80932032. Its totient is φ = 79758832.

The previous prime is 80345429. The next prime is 80345467. The reversal of 80345431 is 13454308.

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

It is a cyclic number.

It is not a de Polignac number, because 80345431 - 2¹ = 80345429 is a prime.

It is a super-2 number, since 2×80345431² = 12910776565151522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80345431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80345401) 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, 293095 + ... + 293368.

It is an arithmetic number, because the mean of its divisors is an integer number (20233008).

Almost surely, 2^80345431 is an apocalyptic number.

80345431 is a deficient number, since it is larger than the sum of its proper divisors (586601).

80345431 is a wasteful number, since it uses less digits than its factorization.

80345431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586600.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 80345431 is about 8963.5612900231. The cubic root of 80345431 is about 431.5062213024.

Adding to 80345431 its reverse (13454308), we get a palindrome (93799739).

The spelling of 80345431 in words is "eighty million, three hundred forty-five thousand, four hundred thirty-one".