1075421687 has 8 divisors (see below), whose sum is σ = 1105041216. Its totient is φ = 1045831392.

The previous prime is 1075421681. The next prime is 1075421689. The reversal of 1075421687 is 7861245701.

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 1075421687 - 2²² = 1071227383 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 (1075421681) 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, 82073 + ... + 94269.

It is an arithmetic number, because the mean of its divisors is an integer number (138130152).

Almost surely, 2^1075421687 is an apocalyptic number.

1075421687 is a deficient number, since it is larger than the sum of its proper divisors (29619529).

1075421687 is a wasteful number, since it uses less digits than its factorization.

1075421687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14617.

The product of its (nonzero) digits is 94080, while the sum is 41.

The square root of 1075421687 is about 32793.6226574619. The cubic root of 1075421687 is about 1024.5337358205.

The spelling of 1075421687 in words is "one billion, seventy-five million, four hundred twenty-one thousand, six hundred eighty-seven".