377434009 has 2 divisors, whose sum is σ = 377434010. Its totient is φ = 377434008.

The previous prime is 377434007. The next prime is 377434037. The reversal of 377434009 is 900434773.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 309865609 + 67568400 = 17603^2 + 8220^2 .

It is a cyclic number.

It is not a de Polignac number, because 377434009 - 2¹ = 377434007 is a prime.

It is a super-2 number, since 2×377434009² = 284912862299624162, which contains 22 as substring.

Together with 377434007, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (377434007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 188717004 + 188717005.

It is an arithmetic number, because the mean of its divisors is an integer number (188717005).

Almost surely, 2^377434009 is an apocalyptic number.

It is an amenable number.

377434009 is a deficient number, since it is larger than the sum of its proper divisors (1).

377434009 is an equidigital number, since it uses as much as digits as its factorization.

377434009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504, while the sum is 37.

The square root of 377434009 is about 19427.6609245684. The cubic root of 377434009 is about 722.6816209873.

The spelling of 377434009 in words is "three hundred seventy-seven million, four hundred thirty-four thousand, nine".