674405477 has 2 divisors, whose sum is σ = 674405478. Its totient is φ = 674405476.

The previous prime is 674405363. The next prime is 674405503. The reversal of 674405477 is 774504476.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 637512001 + 36893476 = 25249^2 + 6074^2 .

It is a cyclic number.

It is not a de Polignac number, because 674405477 - 2¹⁸ = 674143333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (674405177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337202738 + 337202739.

It is an arithmetic number, because the mean of its divisors is an integer number (337202739).

Almost surely, 2^674405477 is an apocalyptic number.

It is an amenable number.

674405477 is a deficient number, since it is larger than the sum of its proper divisors (1).

674405477 is an equidigital number, since it uses as much as digits as its factorization.

674405477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 658560, while the sum is 44.

The square root of 674405477 is about 25969.3179925850. The cubic root of 674405477 is about 876.9477056970.

The spelling of 674405477 in words is "six hundred seventy-four million, four hundred five thousand, four hundred seventy-seven".