2363991 has 8 divisors (see below), whose sum is σ = 3602304. Its totient is φ = 1350840.

The previous prime is 2363983. The next prime is 2364001. The reversal of 2363991 is 1993632.

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

It is not a de Polignac number, because 2363991 - 2³ = 2363983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2363941) 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, 56265 + ... + 56306.

It is an arithmetic number, because the mean of its divisors is an integer number (450288).

2^2363991 is an apocalyptic number.

2363991 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2363991 is a deficient number, since it is larger than the sum of its proper divisors (1238313).

2363991 is a wasteful number, since it uses less digits than its factorization.

2363991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112581.

The product of its digits is 8748, while the sum is 33.

The square root of 2363991 is about 1537.5275607286. The cubic root of 2363991 is about 133.2136126733.

The spelling of 2363991 in words is "two million, three hundred sixty-three thousand, nine hundred ninety-one".