377991373 has 2 divisors, whose sum is σ = 377991374. Its totient is φ = 377991372.

The previous prime is 377991359. The next prime is 377991403. The reversal of 377991373 is 373199773.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 377991364 + 9 = 19442^2 + 3^2 .

It is an emirp because it is prime and its reverse (373199773) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 377991373 - 2¹³ = 377983181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (377991323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 188995686 + 188995687.

It is an arithmetic number, because the mean of its divisors is an integer number (188995687).

Almost surely, 2^377991373 is an apocalyptic number.

It is an amenable number.

377991373 is a deficient number, since it is larger than the sum of its proper divisors (1).

377991373 is an equidigital number, since it uses as much as digits as its factorization.

377991373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 750141, while the sum is 49.

The square root of 377991373 is about 19442.0002314577. Note that the first 3 decimals coincide. The cubic root of 377991373 is about 723.0371786030.

The spelling of 377991373 in words is "three hundred seventy-seven million, nine hundred ninety-one thousand, three hundred seventy-three".