354620661 has 8 divisors (see below), whose sum is σ = 472945440. Its totient is φ = 236354832.

The previous prime is 354620627. The next prime is 354620683. The reversal of 354620661 is 166026453.

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

It is not a de Polignac number, because 354620661 - 2⁶ = 354620597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354620611) 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, 2026 + ... + 26708.

It is an arithmetic number, because the mean of its divisors is an integer number (59118180).

Almost surely, 2^354620661 is an apocalyptic number.

It is an amenable number.

354620661 is a deficient number, since it is larger than the sum of its proper divisors (118324779).

354620661 is a wasteful number, since it uses less digits than its factorization.

354620661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29475.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 354620661 is about 18831.3743789454. The cubic root of 354620661 is about 707.8175800414.

The spelling of 354620661 in words is "three hundred fifty-four million, six hundred twenty thousand, six hundred sixty-one".