10293991 has 8 divisors (see below), whose sum is σ = 10869120. Its totient is φ = 9722232.

The previous prime is 10293989. The next prime is 10294001. The reversal of 10293991 is 19939201.

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

It is a cyclic number.

It is not a de Polignac number, because 10293991 - 2¹ = 10293989 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10293901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7806 + ... + 9028.

It is an arithmetic number, because the mean of its divisors is an integer number (1358640).

Almost surely, 2^10293991 is an apocalyptic number.

10293991 is a deficient number, since it is larger than the sum of its proper divisors (575129).

10293991 is a wasteful number, since it uses less digits than its factorization.

10293991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1685.

The product of its (nonzero) digits is 4374, while the sum is 34.

The square root of 10293991 is about 3208.4250030194. The cubic root of 10293991 is about 217.5343918840.

The spelling of 10293991 in words is "ten million, two hundred ninety-three thousand, nine hundred ninety-one".