354193957 has 8 divisors (see below), whose sum is σ = 390743640. Its totient is φ = 318973440.

The previous prime is 354193949. The next prime is 354193979. The reversal of 354193957 is 759391453.

It can be written as a sum of positive squares in 4 ways, for example, as 29257281 + 324936676 = 5409^2 + 18026^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 354193957 - 2³ = 354193949 is a prime.

It is a super-3 number, since 3×354193957³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354193057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331732 + ... + 332797.

It is an arithmetic number, because the mean of its divisors is an integer number (48842955).

Almost surely, 2^354193957 is an apocalyptic number.

It is an amenable number.

354193957 is a deficient number, since it is larger than the sum of its proper divisors (36549683).

354193957 is a wasteful number, since it uses less digits than its factorization.

354193957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664583.

The product of its digits is 510300, while the sum is 46.

The square root of 354193957 is about 18820.0413655231. The cubic root of 354193957 is about 707.5335678114.

The spelling of 354193957 in words is "three hundred fifty-four million, one hundred ninety-three thousand, nine hundred fifty-seven".