355859947 has 2 divisors, whose sum is σ = 355859948. Its totient is φ = 355859946.

The previous prime is 355859941. The next prime is 355859989. The reversal of 355859947 is 749958553.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 355859947 - 2¹¹ = 355857899 is a prime.

It is not a weakly prime, because it can be changed into another prime (355859941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177929973 + 177929974.

It is an arithmetic number, because the mean of its divisors is an integer number (177929974).

Almost surely, 2^355859947 is an apocalyptic number.

355859947 is a deficient number, since it is larger than the sum of its proper divisors (1).

355859947 is an equidigital number, since it uses as much as digits as its factorization.

355859947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6804000, while the sum is 55.

The square root of 355859947 is about 18864.2505019415. The cubic root of 355859947 is about 708.6411535684.

The spelling of 355859947 in words is "three hundred fifty-five million, eight hundred fifty-nine thousand, nine hundred forty-seven".