10778431 has 4 divisors (see below), whose sum is σ = 10879272. Its totient is φ = 10677592.

The previous prime is 10778429. The next prime is 10778441. The reversal of 10778431 is 13487701.

10778431 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13487701 = 19 ⋅709879.

It is a cyclic number.

It is not a de Polignac number, because 10778431 - 2¹ = 10778429 is a prime.

It is a super-2 number, since 2×10778431² = 232349149643522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10778393 and 10778402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10778441) 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, 50260 + ... + 50473.

It is an arithmetic number, because the mean of its divisors is an integer number (2719818).

Almost surely, 2^10778431 is an apocalyptic number.

10778431 is a deficient number, since it is larger than the sum of its proper divisors (100841).

10778431 is a wasteful number, since it uses less digits than its factorization.

10778431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100840.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 10778431 is about 3283.0520860931. The cubic root of 10778431 is about 220.8946420813.

The spelling of 10778431 in words is "ten million, seven hundred seventy-eight thousand, four hundred thirty-one".