80409031 has 4 divisors (see below), whose sum is σ = 85138992. Its totient is φ = 75679072.

The previous prime is 80409013. The next prime is 80409037. The reversal of 80409031 is 13090408.

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 80409031 - 2⁷ = 80408903 is a prime.

It is a super-2 number, since 2×80409031² = 12931224532717922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 80408987 and 80409005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80409037) 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, 2364955 + ... + 2364988.

It is an arithmetic number, because the mean of its divisors is an integer number (21284748).

Almost surely, 2^80409031 is an apocalyptic number.

80409031 is a deficient number, since it is larger than the sum of its proper divisors (4729961).

80409031 is a wasteful number, since it uses less digits than its factorization.

80409031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4729960.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 80409031 is about 8967.1082852835. The cubic root of 80409031 is about 431.6200487978.

Adding to 80409031 its reverse (13090408), we get a palindrome (93499439).

It can be divided in two parts, 8040 and 9031, that added together give a palindrome (17071).

The spelling of 80409031 in words is "eighty million, four hundred nine thousand, thirty-one".