354177389 has 2 divisors, whose sum is σ = 354177390. Its totient is φ = 354177388.

The previous prime is 354177367. The next prime is 354177403. The reversal of 354177389 is 983771453.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 351750025 + 2427364 = 18755^2 + 1558^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-354177389 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (354177589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177088694 + 177088695.

It is an arithmetic number, because the mean of its divisors is an integer number (177088695).

Almost surely, 2^354177389 is an apocalyptic number.

It is an amenable number.

354177389 is a deficient number, since it is larger than the sum of its proper divisors (1).

354177389 is an equidigital number, since it uses as much as digits as its factorization.

354177389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 635040, while the sum is 47.

The square root of 354177389 is about 18819.6011913111. The cubic root of 354177389 is about 707.5225356272.

The spelling of 354177389 in words is "three hundred fifty-four million, one hundred seventy-seven thousand, three hundred eighty-nine".