784161487 has 2 divisors, whose sum is σ = 784161488. Its totient is φ = 784161486.

The previous prime is 784161481. The next prime is 784161493.

784161487 is nontrivially palindromic in base 10.

It is a balanced prime because it is at equal distance from previous prime (784161481) and next prime (784161493).

It is a palprime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-784161487 is a prime.

It is a super-2 number, since 2×784161487² = 1229818475388102338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (784161481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 392080743 + 392080744.

It is an arithmetic number, because the mean of its divisors is an integer number (392080744).

Almost surely, 2^784161487 is an apocalyptic number.

784161487 is a deficient number, since it is larger than the sum of its proper divisors (1).

784161487 is an equidigital number, since it uses as much as digits as its factorization.

784161487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 301056, while the sum is 46.

The square root of 784161487 is about 28002.8835479491. The cubic root of 784161487 is about 922.1505640590.

The spelling of 784161487 in words is "seven hundred eighty-four million, one hundred sixty-one thousand, four hundred eighty-seven".