1073404861 has 4 divisors (see below), whose sum is σ = 1091001724. Its totient is φ = 1055808000.

The previous prime is 1073404841. The next prime is 1073404883. The reversal of 1073404861 is 1684043701.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 331931961 + 741472900 = 18219^2 + 27230^2 .

It is a cyclic number.

It is not a de Polignac number, because 1073404861 - 2⁹ = 1073404349 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 (1073404831) 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, 8798340 + ... + 8798461.

It is an arithmetic number, because the mean of its divisors is an integer number (272750431).

Almost surely, 2^1073404861 is an apocalyptic number.

It is an amenable number.

1073404861 is a deficient number, since it is larger than the sum of its proper divisors (17596863).

1073404861 is an equidigital number, since it uses as much as digits as its factorization.

1073404861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17596862.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 1073404861 is about 32762.8579492083. The cubic root of 1073404861 is about 1023.8928711399.

The spelling of 1073404861 in words is "one billion, seventy-three million, four hundred four thousand, eight hundred sixty-one".