10621994 has 8 divisors (see below), whose sum is σ = 15964068. Its totient is φ = 5300640.

The previous prime is 10621981. The next prime is 10621999. The reversal of 10621994 is 49912601.

It can be written as a sum of positive squares in 2 ways, for example, as 9690769 + 931225 = 3113^2 + 965^2 .

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

It is a super-2 number, since 2×10621994² = 225653513072072, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10621994.

It is not an unprimeable number, because it can be changed into a prime (10621999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3827 + ... + 5990.

Almost surely, 2^10621994 is an apocalyptic number.

10621994 is a deficient number, since it is larger than the sum of its proper divisors (5342074).

10621994 is an equidigital number, since it uses as much as digits as its factorization.

10621994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10360.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 10621994 is about 3259.1400706321. The cubic root of 10621994 is about 219.8207493073.

The spelling of 10621994 in words is "ten million, six hundred twenty-one thousand, nine hundred ninety-four".