770195987 has 8 divisors (see below), whose sum is σ = 840548352. Its totient is φ = 699899400.

The previous prime is 770195983. The next prime is 770196017. The reversal of 770195987 is 789591077.

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 770195987 - 2² = 770195983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (770195981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18158 + ... + 43244.

It is an arithmetic number, because the mean of its divisors is an integer number (105068544).

Almost surely, 2^770195987 is an apocalyptic number.

770195987 is a deficient number, since it is larger than the sum of its proper divisors (70352365).

770195987 is a wasteful number, since it uses less digits than its factorization.

770195987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27889.

The product of its (nonzero) digits is 1111320, while the sum is 53.

The square root of 770195987 is about 27752.4050669487. The cubic root of 770195987 is about 916.6434028843.

The spelling of 770195987 in words is "seven hundred seventy million, one hundred ninety-five thousand, nine hundred eighty-seven".