10263891 has 8 divisors (see below), whose sum is σ = 14929344. Its totient is φ = 6220520.

The previous prime is 10263887. The next prime is 10263893. The reversal of 10263891 is 19836201.

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 10263891 - 2² = 10263887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10263893) 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, 155481 + ... + 155546.

It is an arithmetic number, because the mean of its divisors is an integer number (1866168).

Almost surely, 2^10263891 is an apocalyptic number.

10263891 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10263891 is a deficient number, since it is larger than the sum of its proper divisors (4665453).

10263891 is a wasteful number, since it uses less digits than its factorization.

10263891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311041.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 10263891 is about 3203.7307939338. The cubic root of 10263891 is about 217.3221587611.

It can be divided in two parts, 10 and 263891, that added together give a triangular number (263901 = T₇₂₆).

The spelling of 10263891 in words is "ten million, two hundred sixty-three thousand, eight hundred ninety-one".