80407997 has 4 divisors (see below), whose sum is σ = 81540576. Its totient is φ = 79275420.

The previous prime is 80407969. The next prime is 80408033. The reversal of 80407997 is 79970408.

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 80407997 - 2¹² = 80403901 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 (80407907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 566183 + ... + 566324.

It is an arithmetic number, because the mean of its divisors is an integer number (20385144).

Almost surely, 2^80407997 is an apocalyptic number.

It is an amenable number.

80407997 is a deficient number, since it is larger than the sum of its proper divisors (1132579).

80407997 is a wasteful number, since it uses less digits than its factorization.

80407997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132578.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 80407997 is about 8967.0506299452. The cubic root of 80407997 is about 431.6181986862.

The spelling of 80407997 in words is "eighty million, four hundred seven thousand, nine hundred ninety-seven".