353897391 has 8 divisors (see below), whose sum is σ = 476444800. Its totient is φ = 233640792.

The previous prime is 353897387. The next prime is 353897431. The reversal of 353897391 is 193798353.

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

It is not a de Polignac number, because 353897391 - 2² = 353897387 is a prime.

It is a super-3 number, since 3×353897391³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 353897391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (353897321) 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, 572341 + ... + 572958.

It is an arithmetic number, because the mean of its divisors is an integer number (59555600).

Almost surely, 2^353897391 is an apocalyptic number.

353897391 is a deficient number, since it is larger than the sum of its proper divisors (122547409).

353897391 is a wasteful number, since it uses less digits than its factorization.

353897391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1145405.

The product of its digits is 612360, while the sum is 48.

The square root of 353897391 is about 18812.1607211931. The cubic root of 353897391 is about 707.3360404522.

The spelling of 353897391 in words is "three hundred fifty-three million, eight hundred ninety-seven thousand, three hundred ninety-one".