1073693561 has 8 divisors (see below), whose sum is σ = 1089246144. Its totient is φ = 1058203440.

The previous prime is 1073693507. The next prime is 1073693573. The reversal of 1073693561 is 1653963701.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1073693561 - 2¹⁸ = 1073431417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1073693581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19580 + ... + 50306.

It is an arithmetic number, because the mean of its divisors is an integer number (136155768).

Almost surely, 2^1073693561 is an apocalyptic number.

It is an amenable number.

1073693561 is a deficient number, since it is larger than the sum of its proper divisors (15552583).

1073693561 is an equidigital number, since it uses as much as digits as its factorization.

1073693561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31231.

The product of its (nonzero) digits is 102060, while the sum is 41.

The square root of 1073693561 is about 32767.2635567879. The cubic root of 1073693561 is about 1023.9846573756.

The spelling of 1073693561 in words is "one billion, seventy-three million, six hundred ninety-three thousand, five hundred sixty-one".