1078695641 has 4 divisors (see below), whose sum is σ = 1078925952. Its totient is φ = 1078465332.

The previous prime is 1078695617. The next prime is 1078695659. The reversal of 1078695641 is 1465968701.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1078695641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1078695671) 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, 107981 + ... + 117546.

It is an arithmetic number, because the mean of its divisors is an integer number (269731488).

Almost surely, 2^1078695641 is an apocalyptic number.

It is an amenable number.

1078695641 is a deficient number, since it is larger than the sum of its proper divisors (230311).

1078695641 is an equidigital number, since it uses as much as digits as its factorization.

1078695641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230310.

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 1078695641 is about 32843.5022645271. The cubic root of 1078695641 is about 1025.5723604056.

The spelling of 1078695641 in words is "one billion, seventy-eight million, six hundred ninety-five thousand, six hundred forty-one".