354065891 has 2 divisors, whose sum is σ = 354065892. Its totient is φ = 354065890.

The previous prime is 354065867. The next prime is 354065897. The reversal of 354065891 is 198560453.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-354065891 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (354065897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177032945 + 177032946.

It is an arithmetic number, because the mean of its divisors is an integer number (177032946).

Almost surely, 2^354065891 is an apocalyptic number.

354065891 is a deficient number, since it is larger than the sum of its proper divisors (1).

354065891 is an equidigital number, since it uses as much as digits as its factorization.

354065891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 354065891 is about 18816.6386743223. The cubic root of 354065891 is about 707.4482831671.

The spelling of 354065891 in words is "three hundred fifty-four million, sixty-five thousand, eight hundred ninety-one".