1591476479 has 2 divisors, whose sum is σ = 1591476480. Its totient is φ = 1591476478.

The previous prime is 1591476401. The next prime is 1591476521. The reversal of 1591476479 is 9746741951.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1591476479 - 2⁸ = 1591476223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1591476479.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1591476379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 795738239 + 795738240.

It is an arithmetic number, because the mean of its divisors is an integer number (795738240).

Almost surely, 2^1591476479 is an apocalyptic number.

1591476479 is a deficient number, since it is larger than the sum of its proper divisors (1).

1591476479 is an equidigital number, since it uses as much as digits as its factorization.

1591476479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1905120, while the sum is 53.

The square root of 1591476479 is about 39893.3137129519. The cubic root of 1591476479 is about 1167.5264857419.

The spelling of 1591476479 in words is "one billion, five hundred ninety-one million, four hundred seventy-six thousand, four hundred seventy-nine".