10643690 has 16 divisors (see below), whose sum is σ = 19226592. Its totient is φ = 4242384.

The previous prime is 10643657. The next prime is 10643693. The reversal of 10643690 is 9634601.

It is a super-2 number, since 2×10643690² = 226576273632200, which contains 22 as substring.

It is a zygodrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (10643693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1337 + ... + 4803.

It is an arithmetic number, because the mean of its divisors is an integer number (1201662).

Almost surely, 2^10643690 is an apocalyptic number.

10643690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10643690 is a deficient number, since it is larger than the sum of its proper divisors (8582902).

10643690 is a wasteful number, since it uses less digits than its factorization.

10643690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3781.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 10643690 is about 3262.4668580692. The cubic root of 10643690 is about 219.9703127985.

The spelling of 10643690 in words is "ten million, six hundred forty-three thousand, six hundred ninety".