354643057 has 4 divisors (see below), whose sum is σ = 355241700. Its totient is φ = 354044416.

The previous prime is 354643043. The next prime is 354643109. The reversal of 354643057 is 750346453.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 750346453 = 41 ⋅18301133.

It can be written as a sum of positive squares in 2 ways, for example, as 266864896 + 87778161 = 16336^2 + 9369^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-354643057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (354643357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298432 + ... + 299617.

It is an arithmetic number, because the mean of its divisors is an integer number (88810425).

Almost surely, 2^354643057 is an apocalyptic number.

It is an amenable number.

354643057 is a deficient number, since it is larger than the sum of its proper divisors (598643).

354643057 is an equidigital number, since it uses as much as digits as its factorization.

354643057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598642.

The product of its (nonzero) digits is 151200, while the sum is 37.

The square root of 354643057 is about 18831.9690154800. The cubic root of 354643057 is about 707.8324804224.

The spelling of 354643057 in words is "three hundred fifty-four million, six hundred forty-three thousand, fifty-seven".