377605961 has 2 divisors, whose sum is σ = 377605962. Its totient is φ = 377605960.

The previous prime is 377605939. The next prime is 377605967. The reversal of 377605961 is 169506773.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 189915961 + 187690000 = 13781^2 + 13700^2 .

It is a cyclic number.

It is not a de Polignac number, because 377605961 - 2¹⁰ = 377604937 is a prime.

It is not a weakly prime, because it can be changed into another prime (377605967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 188802980 + 188802981.

It is an arithmetic number, because the mean of its divisors is an integer number (188802981).

Almost surely, 2^377605961 is an apocalyptic number.

It is an amenable number.

377605961 is a deficient number, since it is larger than the sum of its proper divisors (1).

377605961 is an equidigital number, since it uses as much as digits as its factorization.

377605961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 238140, while the sum is 44.

The square root of 377605961 is about 19432.0858633344. The cubic root of 377605961 is about 722.7913511482.

The spelling of 377605961 in words is "three hundred seventy-seven million, six hundred five thousand, nine hundred sixty-one".