1479197977 has 2 divisors, whose sum is σ = 1479197978. Its totient is φ = 1479197976.

The previous prime is 1479197971. The next prime is 1479198023. The reversal of 1479197977 is 7797919741.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1248279561 + 230918416 = 35331^2 + 15196^2 .

It is an emirp because it is prime and its reverse (7797919741) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1479197977 - 2²⁷ = 1344980249 is a prime.

It is not a weakly prime, because it can be changed into another prime (1479197971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 739598988 + 739598989.

It is an arithmetic number, because the mean of its divisors is an integer number (739598989).

Almost surely, 2^1479197977 is an apocalyptic number.

It is an amenable number.

1479197977 is a deficient number, since it is larger than the sum of its proper divisors (1).

1479197977 is an equidigital number, since it uses as much as digits as its factorization.

1479197977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7001316, while the sum is 61.

The square root of 1479197977 is about 38460.3429131879. The cubic root of 1479197977 is about 1139.3979526011.

The spelling of 1479197977 in words is "one billion, four hundred seventy-nine million, one hundred ninety-seven thousand, nine hundred seventy-seven".