354742447 has 2 divisors, whose sum is σ = 354742448. Its totient is φ = 354742446.

The previous prime is 354742391. The next prime is 354742459. The reversal of 354742447 is 744247453.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-354742447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (354742147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177371223 + 177371224.

It is an arithmetic number, because the mean of its divisors is an integer number (177371224).

Almost surely, 2^354742447 is an apocalyptic number.

354742447 is a deficient number, since it is larger than the sum of its proper divisors (1).

354742447 is an equidigital number, since it uses as much as digits as its factorization.

354742447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 376320, while the sum is 40.

The square root of 354742447 is about 18834.6076943482. The cubic root of 354742447 is about 707.8985984508.

The spelling of 354742447 in words is "three hundred fifty-four million, seven hundred forty-two thousand, four hundred forty-seven".