10428387 has 4 divisors (see below), whose sum is σ = 13904520. Its totient is φ = 6952256.

The previous prime is 10428367. The next prime is 10428389. The reversal of 10428387 is 78382401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78382401 = 3 ⋅26127467.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10428387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10428389) 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, 1738062 + ... + 1738067.

It is an arithmetic number, because the mean of its divisors is an integer number (3476130).

Almost surely, 2^10428387 is an apocalyptic number.

10428387 is a deficient number, since it is larger than the sum of its proper divisors (3476133).

10428387 is an equidigital number, since it uses as much as digits as its factorization.

10428387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3476132.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 10428387 is about 3229.3013176227. The cubic root of 10428387 is about 218.4769947171.

The spelling of 10428387 in words is "ten million, four hundred twenty-eight thousand, three hundred eighty-seven".