10099621 has 8 divisors (see below), whose sum is σ = 12150080. Its totient is φ = 8201088.

The previous prime is 10099591. The next prime is 10099633. The reversal of 10099621 is 12699001.

10099621 is digitally balanced in base 2, because in such base 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 not a de Polignac number, because 10099621 - 2⁵ = 10099589 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10099621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10099651) 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, 37836 + ... + 38101.

It is an arithmetic number, because the mean of its divisors is an integer number (1518760).

Almost surely, 2^10099621 is an apocalyptic number.

It is an amenable number.

10099621 is a deficient number, since it is larger than the sum of its proper divisors (2050459).

10099621 is an equidigital number, since it uses as much as digits as its factorization.

10099621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75963.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 10099621 is about 3177.9900880903. The cubic root of 10099621 is about 216.1565294868.

The spelling of 10099621 in words is "ten million, ninety-nine thousand, six hundred twenty-one".