354001997 has 2 divisors, whose sum is σ = 354001998. Its totient is φ = 354001996.

The previous prime is 354001981. The next prime is 354002009. The reversal of 354001997 is 799100453.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 321807721 + 32194276 = 17939^2 + 5674^2 .

It is a cyclic number.

It is not a de Polignac number, because 354001997 - 2⁴ = 354001981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 354001997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (354001957) 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, 177000998 + 177000999.

It is an arithmetic number, because the mean of its divisors is an integer number (177000999).

Almost surely, 2^354001997 is an apocalyptic number.

It is an amenable number.

354001997 is a deficient number, since it is larger than the sum of its proper divisors (1).

354001997 is an equidigital number, since it uses as much as digits as its factorization.

354001997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 354001997 is about 18814.9407918282. The cubic root of 354001997 is about 707.4057257214.

The spelling of 354001997 in words is "three hundred fifty-four million, one thousand, nine hundred ninety-seven".