10506387 has 4 divisors (see below), whose sum is σ = 14008520. Its totient is φ = 7004256.

The previous prime is 10506383. The next prime is 10506407. The reversal of 10506387 is 78360501.

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

It is not a de Polignac number, because 10506387 - 2² = 10506383 is a prime.

It is a super-2 number, since 2×10506387² = 220768335587538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10506383) 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, 1751062 + ... + 1751067.

It is an arithmetic number, because the mean of its divisors is an integer number (3502130).

Almost surely, 2^10506387 is an apocalyptic number.

10506387 is a deficient number, since it is larger than the sum of its proper divisors (3502133).

10506387 is an equidigital number, since it uses as much as digits as its factorization.

10506387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3502132.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 10506387 is about 3241.3557348739. The cubic root of 10506387 is about 219.0203479769.

Adding to 10506387 its reverse (78360501), we get a palindrome (88866888).

The spelling of 10506387 in words is "ten million, five hundred six thousand, three hundred eighty-seven".