10748781 has 10 divisors (see below), whose sum is σ = 16056942. Its totient is φ = 7165800.

The previous prime is 10748779. The next prime is 10748783. The reversal of 10748781 is 18784701.

It is an interprime number because it is at equal distance from previous prime (10748779) and next prime (10748783).

It can be written as a sum of positive squares in only one way, i.e., 9922500 + 826281 = 3150^2 + 909^2 .

It is not a de Polignac number, because 10748781 - 2¹ = 10748779 is a prime.

It is a super-2 number, since 2×10748781² = 231072585971922, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10748783) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 66270 + ... + 66431.

Almost surely, 2^10748781 is an apocalyptic number.

It is an amenable number.

10748781 is a deficient number, since it is larger than the sum of its proper divisors (5308161).

10748781 is an equidigital number, since it uses as much as digits as its factorization.

10748781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132713 (or 132704 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 36.

The square root of 10748781 is about 3278.5333611235. The cubic root of 10748781 is about 220.6919056796.

The spelling of 10748781 in words is "ten million, seven hundred forty-eight thousand, seven hundred eighty-one".