80415047 has 2 divisors, whose sum is σ = 80415048. Its totient is φ = 80415046.

The previous prime is 80415001. The next prime is 80415059. The reversal of 80415047 is 74051408.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80415047 - 2¹² = 80410951 is a prime.

It is equal to p_4692224 and since 80415047 and 4692224 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80415067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40207523 + 40207524.

It is an arithmetic number, because the mean of its divisors is an integer number (40207524).

Almost surely, 2^80415047 is an apocalyptic number.

80415047 is a deficient number, since it is larger than the sum of its proper divisors (1).

80415047 is an equidigital number, since it uses as much as digits as its factorization.

80415047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 80415047 is about 8967.4437271722. The cubic root of 80415047 is about 431.6308127689.

It can be divided in two parts, 804 and 15047, that added together give a palindrome (15851).

The spelling of 80415047 in words is "eighty million, four hundred fifteen thousand, forty-seven".