10487778 has 32 divisors (see below), whose sum is σ = 24336384. Its totient is φ = 2950992.

The previous prime is 10487773. The next prime is 10487801. The reversal of 10487778 is 87778401.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10487773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 951 + ... + 4677.

It is an arithmetic number, because the mean of its divisors is an integer number (760512).

Almost surely, 2^10487778 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10487778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12168192).

10487778 is an abundant number, since it is smaller than the sum of its proper divisors (13848606).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10487778 is a wasteful number, since it uses less digits than its factorization.

10487778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3806.

The product of its (nonzero) digits is 87808, while the sum is 42.

The square root of 10487778 is about 3238.4839045455. The cubic root of 10487778 is about 218.8909613362.

The spelling of 10487778 in words is "ten million, four hundred eighty-seven thousand, seven hundred seventy-eight".