1022748479 has 4 divisors (see below), whose sum is σ = 1032306984. Its totient is φ = 1013189976.

The previous prime is 1022748451. The next prime is 1022748499. The reversal of 1022748479 is 9748472201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9748472201 = 13 ⋅749882477.

It is a cyclic number.

It is not a de Polignac number, because 1022748479 - 2²⁸ = 754313023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022748449) 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, 4779092 + ... + 4779305.

It is an arithmetic number, because the mean of its divisors is an integer number (258076746).

Almost surely, 2^1022748479 is an apocalyptic number.

1022748479 is a deficient number, since it is larger than the sum of its proper divisors (9558505).

1022748479 is an equidigital number, since it uses as much as digits as its factorization.

1022748479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9558504.

The product of its (nonzero) digits is 225792, while the sum is 44.

The square root of 1022748479 is about 31980.4390057422. The cubic root of 1022748479 is about 1007.5260429163.

The spelling of 1022748479 in words is "one billion, twenty-two million, seven hundred forty-eight thousand, four hundred seventy-nine".