80711407 has 4 divisors (see below), whose sum is σ = 92241616. Its totient is φ = 69181200.

The previous prime is 80711399. The next prime is 80711417. The reversal of 80711407 is 70411708.

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 80711407 - 2³ = 80711399 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 (80711417) 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, 5765094 + ... + 5765107.

It is an arithmetic number, because the mean of its divisors is an integer number (23060404).

Almost surely, 2^80711407 is an apocalyptic number.

80711407 is a deficient number, since it is larger than the sum of its proper divisors (11530209).

80711407 is a wasteful number, since it uses less digits than its factorization.

80711407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11530208.

The product of its (nonzero) digits is 1568, while the sum is 28.

The square root of 80711407 is about 8983.9527492079. The cubic root of 80711407 is about 432.1604038969.

It can be divided in two parts, 80711 and 407, that added together give a palindrome (81118).

The spelling of 80711407 in words is "eighty million, seven hundred eleven thousand, four hundred seven".