1047342761 has 4 divisors (see below), whose sum is σ = 1054013892. Its totient is φ = 1040671632.

The previous prime is 1047342691. The next prime is 1047342799. The reversal of 1047342761 is 1672437401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1672437401 = 409 ⋅4089089.

It can be written as a sum of positive squares in 2 ways, for example, as 256608361 + 790734400 = 16019^2 + 28120^2 .

It is a cyclic number.

It is not a de Polignac number, because 1047342761 - 2¹⁴ = 1047326377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1047342061) 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, 3335330 + ... + 3335643.

It is an arithmetic number, because the mean of its divisors is an integer number (263503473).

Almost surely, 2^1047342761 is an apocalyptic number.

It is an amenable number.

1047342761 is a deficient number, since it is larger than the sum of its proper divisors (6671131).

1047342761 is an equidigital number, since it uses as much as digits as its factorization.

1047342761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6671130.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 1047342761 is about 32362.6754301927. The cubic root of 1047342761 is about 1015.5382331442.

The spelling of 1047342761 in words is "one billion, forty-seven million, three hundred forty-two thousand, seven hundred sixty-one".