789087667 has 4 divisors (see below), whose sum is σ = 791116560. Its totient is φ = 787058776.

The previous prime is 789087661. The next prime is 789087683. The reversal of 789087667 is 766780987.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 766780987 = 7 ⋅109540141.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-789087667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (789087661) 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, 1013863 + ... + 1014640.

It is an arithmetic number, because the mean of its divisors is an integer number (197779140).

Almost surely, 2^789087667 is an apocalyptic number.

789087667 is a deficient number, since it is larger than the sum of its proper divisors (2028893).

789087667 is a wasteful number, since it uses less digits than its factorization.

789087667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2028892.

The product of its (nonzero) digits is 7112448, while the sum is 58.

The square root of 789087667 is about 28090.7042809539. The cubic root of 789087667 is about 924.0775481818.

The spelling of 789087667 in words is "seven hundred eighty-nine million, eighty-seven thousand, six hundred sixty-seven".