377978413 has 2 divisors, whose sum is σ = 377978414. Its totient is φ = 377978412.

The previous prime is 377978407. The next prime is 377978441. The reversal of 377978413 is 314879773.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 371024644 + 6953769 = 19262^2 + 2637^2 .

It is a cyclic number.

It is not a de Polignac number, because 377978413 - 2¹³ = 377970221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (377978813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 188989206 + 188989207.

It is an arithmetic number, because the mean of its divisors is an integer number (188989207).

Almost surely, 2^377978413 is an apocalyptic number.

It is an amenable number.

377978413 is a deficient number, since it is larger than the sum of its proper divisors (1).

377978413 is an equidigital number, since it uses as much as digits as its factorization.

377978413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 889056, while the sum is 49.

The square root of 377978413 is about 19441.6669295614. Note that the first 3 decimals coincide. The cubic root of 377978413 is about 723.0289150379.

The spelling of 377978413 in words is "three hundred seventy-seven million, nine hundred seventy-eight thousand, four hundred thirteen".