79344487 has 2 divisors, whose sum is σ = 79344488. Its totient is φ = 79344486.

The previous prime is 79344467. The next prime is 79344511. The reversal of 79344487 is 78444397.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79344487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79344467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39672243 + 39672244.

It is an arithmetic number, because the mean of its divisors is an integer number (39672244).

Almost surely, 2^79344487 is an apocalyptic number.

79344487 is a deficient number, since it is larger than the sum of its proper divisors (1).

79344487 is an equidigital number, since it uses as much as digits as its factorization.

79344487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 677376, while the sum is 46.

The square root of 79344487 is about 8907.5522451457. The cubic root of 79344487 is about 429.7068255780.

It can be divided in two parts, 7934 and 4487, that added together give a palindrome (12421).

The spelling of 79344487 in words is "seventy-nine million, three hundred forty-four thousand, four hundred eighty-seven".