1974370379 has 2 divisors, whose sum is σ = 1974370380. Its totient is φ = 1974370378.

The previous prime is 1974370369. The next prime is 1974370421. The reversal of 1974370379 is 9730734791.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1974370379 is a prime.

It is not a weakly prime, because it can be changed into another prime (1974370369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 987185189 + 987185190.

It is an arithmetic number, because the mean of its divisors is an integer number (987185190).

Almost surely, 2^1974370379 is an apocalyptic number.

1974370379 is a deficient number, since it is larger than the sum of its proper divisors (1).

1974370379 is an equidigital number, since it uses as much as digits as its factorization.

1974370379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1000188, while the sum is 50.

The square root of 1974370379 is about 44433.8877322253. The cubic root of 1974370379 is about 1254.5160123775.

The spelling of 1974370379 in words is "one billion, nine hundred seventy-four million, three hundred seventy thousand, three hundred seventy-nine".