10620491 has 4 divisors (see below), whose sum is σ = 12137712. Its totient is φ = 9103272.

The previous prime is 10620481. The next prime is 10620521. The reversal of 10620491 is 19402601.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10620491 - 2¹⁸ = 10358347 is a prime.

It is a super-2 number, since 2×10620491² = 225589658162162, which contains 22 as substring.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 758600 + ... + 758613.

It is an arithmetic number, because the mean of its divisors is an integer number (3034428).

Almost surely, 2^10620491 is an apocalyptic number.

10620491 is a deficient number, since it is larger than the sum of its proper divisors (1517221).

10620491 is an equidigital number, since it uses as much as digits as its factorization.

10620491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1517220.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 10620491 is about 3258.9094801789. The cubic root of 10620491 is about 219.8103806901.

It can be divided in two parts, 10620 and 491, that added together give a palindrome (11111).

The spelling of 10620491 in words is "ten million, six hundred twenty thousand, four hundred ninety-one".