1504720379 has 2 divisors, whose sum is σ = 1504720380. Its totient is φ = 1504720378.

The previous prime is 1504720331. The next prime is 1504720397. The reversal of 1504720379 is 9730274051.

Together with next prime (1504720397) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1504720379 is a prime.

It is not a weakly prime, because it can be changed into another prime (1504720079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 752360189 + 752360190.

It is an arithmetic number, because the mean of its divisors is an integer number (752360190).

Almost surely, 2^1504720379 is an apocalyptic number.

1504720379 is a deficient number, since it is larger than the sum of its proper divisors (1).

1504720379 is an equidigital number, since it uses as much as digits as its factorization.

1504720379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 1504720379 is about 38790.7254250291. The cubic root of 1504720379 is about 1145.9137596311.

The spelling of 1504720379 in words is "one billion, five hundred four million, seven hundred twenty thousand, three hundred seventy-nine".