354657 has 4 divisors (see below), whose sum is σ = 472880. Its totient is φ = 236436.

The previous prime is 354647. The next prime is 354661. The reversal of 354657 is 756453.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 756453 = 3 ⋅252151.

It is not a de Polignac number, because 354657 - 2⁸ = 354401 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (354647) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59107 + ... + 59112.

It is an arithmetic number, because the mean of its divisors is an integer number (118220).

2³⁵⁴⁶⁵⁷ is an apocalyptic number.

It is an amenable number.

354657 is a deficient number, since it is larger than the sum of its proper divisors (118223).

354657 is a wasteful number, since it uses less digits than its factorization.

354657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118222.

The product of its digits is 12600, while the sum is 30.

The square root of 354657 is about 595.5308556238. The cubic root of 354657 is about 70.7841756584.

The spelling of 354657 in words is "three hundred fifty-four thousand, six hundred fifty-seven".