10457779 has 4 divisors (see below), whose sum is σ = 10629280. Its totient is φ = 10286280.

The previous prime is 10457773. The next prime is 10457789. The reversal of 10457779 is 97775401.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10457779 is a prime.

It is a super-2 number, since 2×10457779² = 218730283225682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10457773) 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, 85659 + ... + 85780.

It is an arithmetic number, because the mean of its divisors is an integer number (2657320).

Almost surely, 2^10457779 is an apocalyptic number.

10457779 is a deficient number, since it is larger than the sum of its proper divisors (171501).

10457779 is an equidigital number, since it uses as much as digits as its factorization.

10457779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171500.

The product of its (nonzero) digits is 61740, while the sum is 40.

The square root of 10457779 is about 3233.8489451426. The cubic root of 10457779 is about 218.6820584649.

It can be divided in two parts, 10457 and 779, that added together give a square (11236 = 106²).

The spelling of 10457779 in words is "ten million, four hundred fifty-seven thousand, seven hundred seventy-nine".