10199749 has 8 divisors (see below), whose sum is σ = 11848448. Its totient is φ = 8598960.

The previous prime is 10199701. The next prime is 10199767. The reversal of 10199749 is 94799101.

It is a happy number.

10199749 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

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 10199749 - 2⁹ = 10199237 is a prime.

It is a Duffinian number.

10199749 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10199149) 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, 11517 + ... + 12370.

It is an arithmetic number, because the mean of its divisors is an integer number (1481056).

Almost surely, 2^10199749 is an apocalyptic number.

It is an amenable number.

10199749 is a deficient number, since it is larger than the sum of its proper divisors (1648699).

10199749 is an equidigital number, since it uses as much as digits as its factorization.

10199749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23955.

The product of its (nonzero) digits is 20412, while the sum is 40.

The square root of 10199749 is about 3193.7045887182. The cubic root of 10199749 is about 216.8685096071.

The spelling of 10199749 in words is "ten million, one hundred ninety-nine thousand, seven hundred forty-nine".