10620421 has 8 divisors (see below), whose sum is σ = 12162240. Its totient is φ = 9084768.

The previous prime is 10620397. The next prime is 10620439. The reversal of 10620421 is 12402601.

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

It is a de Polignac number, because none of the positive numbers 2^k-10620421 is a prime.

It is a super-2 number, since 2×10620421² = 225586684434482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10620395 and 10620404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10620481) 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, 3090 + ... + 5548.

It is an arithmetic number, because the mean of its divisors is an integer number (1520280).

Almost surely, 2^10620421 is an apocalyptic number.

It is an amenable number.

10620421 is a deficient number, since it is larger than the sum of its proper divisors (1541819).

10620421 is an equidigital number, since it uses as much as digits as its factorization.

10620421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3083.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 10620421 is about 3258.8987403723. The cubic root of 10620421 is about 219.8098977632.

The spelling of 10620421 in words is "ten million, six hundred twenty thousand, four hundred twenty-one".