10671621 has 4 divisors (see below), whose sum is σ = 14228832. Its totient is φ = 7114412.

The previous prime is 10671613. The next prime is 10671637. The reversal of 10671621 is 12617601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10671621 - 2³ = 10671613 is a prime.

It is a super-2 number, since 2×10671621² = 227766989535282, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10671591 and 10671600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10671671) 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, 1778601 + ... + 1778606.

It is an arithmetic number, because the mean of its divisors is an integer number (3557208).

Almost surely, 2^10671621 is an apocalyptic number.

It is an amenable number.

10671621 is a deficient number, since it is larger than the sum of its proper divisors (3557211).

10671621 is an equidigital number, since it uses as much as digits as its factorization.

10671621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3557210.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 10671621 is about 3266.7447099521. The cubic root of 10671621 is about 220.1625589183.

The spelling of 10671621 in words is "ten million, six hundred seventy-one thousand, six hundred twenty-one".