368946991 has 4 divisors (see below), whose sum is σ = 421653712. Its totient is φ = 316240272.

The previous prime is 368946989. The next prime is 368947013. The reversal of 368946991 is 199649863.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 368946991 - 2¹ = 368946989 is a prime.

It is a super-3 number, since 3×368946991³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (368946491) 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, 26353350 + ... + 26353363.

It is an arithmetic number, because the mean of its divisors is an integer number (105413428).

Almost surely, 2^368946991 is an apocalyptic number.

368946991 is a deficient number, since it is larger than the sum of its proper divisors (52706721).

368946991 is an equidigital number, since it uses as much as digits as its factorization.

368946991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52706720.

The product of its digits is 2519424, while the sum is 55.

The square root of 368946991 is about 19207.9928935847. The cubic root of 368946991 is about 717.2237422628.

The spelling of 368946991 in words is "three hundred sixty-eight million, nine hundred forty-six thousand, nine hundred ninety-one".